List of American aero squadrons: Difference between revisions

Years in aviation:	1914 1915 1916 1917 1918 1919 1920
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Years:	1914 1915 1916 1917 1918 1919 1920

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Revision as of 19:09, 24 July 2015

This is a partial list of original Air Service, United States Army "Aero Squadrons" before and during World War I. Units formed after January 1, 1919 are not listed.

Overview

In January 1918 a new numbering scheme for aero squadrons was set up. Numbers 1–399 would be for Aero Service Squadrons (AS). 400–599 Aero Construction Squadrons (ACS), 600–799 Aero Supply Squadrons and 800–1099 Aero Repair Squadrons. Non-notable support squadrons are not listed.

The numerical designation of school squadrons at the various flying fields in the United States was discontinued in July 1918, and replaced by letter designation. For example, the 2d Aero Squadron became Squadron A, Kelly Field. In November 1918, the personnel of the lettered squadrons of each flying field was merged into a single Flying School Detachment at such station.

	Formed prior to April 2, 1917
	American Expeditionary Force combat squadron
	Planned American Expeditionary Force combat squadron (never entered combat)
	Currently active as United States Air Force/Air National Guard squadron

In addition to the Aero Squadrons, whose mission supported airplanes in one way or another, Air Service Spruce Squadrons have been noted and listed. A part of the Signal Corps, they were located in Oregon and Washington states. When the U.S. entered World War I, it was quickly discovered that the nation had no capacity to build warplanes in quantity. Spruce timber, vital to wing construction was in critically short supply. In 1918, the United States Army stepped in and took over the production of airplane spruce in the pacific northwest, with the Spruce Production Division organizing loggers and constructing a plant to process the wood, construct roads and railroads into the forests to access and cut the timber.

Men in the Spruce Squadrons were part of the Signal Corps along with the Aero Squadrons, as the Signal Corps oversaw all Army aviation. About 50,000 soldiers were assigned to Spruce Squadrons, overseeing about 100,000 lumber workers, were assigned to small camps in the Pacific Northwest. Many of these men were itching to go "over there" and take part in combat, however, their labor and skills to produce spruce lumber were needed far more, in the forests of the Pacific Northwest to produce the materiel needed to build aircraft. The camps where the soldiers were located are listed on the individual squadron entry.

Squadrons

1st to 24th Aero Squadrons

At the time of the United States entry into World War I in April 1917, three Aero Squadrons had been formed. The 1st and 3d were in the United States, and the 2d was in the Philippines. The 6th, being destined for Hawaii and the 7th, destined for the Panama Canal Zone were organizing. The 4th and 5th, to be based in the continental United States had yet to receive personnel.

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
1st Aero Squadron	March 5, 1913	Formed as: 1st Provisional Aero Squadron Pre-WWI service in Mexico and Texas^[1] AEF: April 6, 1918 – May 12, 1919 Corps Observation Squadron Combat with I Corps Observation Group^[2] Patrols in the Toul, Aisne-Marne, Vesle and Toul-Verdun Sectors St. Mihiel Offensive Campaign Aisne-Marne Defensive Campaign Meuse-Argonne Offensive Campaign^[2]
1st Aero Squadron	Most senior organization in the United States Air Force Returned to the United States in August 1919, stationed at Park Field, Tennessee Constituted in the Army Air Service as the 1st Squadron (Observation) on March 14, 1921; Re-designated as the 1st Observation Squadron on November 15, 1922; Reorganized and re-designated 1st Bombardment Squadron on March 1, 1935;^[3] Currently: 1st Reconnaissance Squadron, Beale AFB, California^[4]

2d Aero Squadron	December 1, 1915	Formed as: 1st Company, 2d Aero Squadron Pre-WWI service in the Philippines^[1] Instructional flying squadron Re-designated: Squadron A, Kelly Field, Texas, July 1918 Demobilized: November 18, 1918
2d Aero Squadron	Constituted in the Air Service, United States Army on June 3, 1919 at Rockwell Field, California, as the 2d Aero Squadron; Transferred on December 24, 1919 to the Philippines assigned to the Philippine Department. Constituted in the Army Air Service as the 2d Squadron (Observation) on March 14, 1921; Consolidated on April 8, 1924 with the 2d Aero Squadron; Re-designated as: 2d Observation Squadron on January 25, 1923^[3] Stationed at Nichols Field, Philippines on December 7, 1941, subsequently wiped out in the 1941–1942 Battle of the Philippines; Inactivated April 2, 1946.; >Re-activated January 1, 1949. Currently: 2d Air Refueling Squadron, McGuire AFB, New Jersey<^[4]

3d Aero Squadron	November 1, 1916	Pre-WWI service in Texas^[1] Instructional flying squadron Re-designated: Squadron A, Post Field, Oklahoma, July 1918 Demobilized: January 2, 1919
3d Aero Squadron	Constituted in the Air Service, United States Army on May 13, 1919 at Mitchel Field, NY, as the 3d Aero Squadron; Transferred on July 5, 1919 to the Philippines assigned to the Philippine Department. Constituted in the Army Air Service as the 3d Squadron (Pursuit) on March 14, 1921; Re-designated as the 3rd Pursuit Squadron on January 25, 1923 Consolidated on April 8, 1924 with the 3rd Aero Squadron^[3] Stationed at Clark Field, Philippines on December 7, 1941, subsequently wiped out in the 1941–1942 Battle of the Philippines; Inactivated April 2, 1946. Re-designated 3d Tactical Fighter Squadron on March 12, 1973; Activated on March 15, 1973' Currently: 3d Flying Training Squadron, Vance AFB, Oklahoma^[4]

4th Aero Squadron	May 5, 1917	Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons^[1] Instructional flying squadron Re-designated: Squadron B, Post Field, Oklahoma, July 1918 Demobilized: January 2, 1919
4th Aero Squadron	Constituted in the Air Service, United States Army on June 23, 1919 at Hazelhurst Field, NY, as the 4th Aero Squadron; Transferred on January 24, 1920 to Luke Field, Hawaii assigned to the Hawaiian Department. Constituted in the Army Air Service as the 4th Squadron (Observation) on March 14, 1921; Re-designated as the 4th Observation Squadron on January 25, 1923 Consolidated on April 8, 1924 with the 4th Aero Squadron; Reorganized and re-designated 4th Reconnaissance Squadron (Medium Range) on January 25, 1938^[3] Assigned to Hickam Field, Hawaii on December 7, 1941, largely destroyed during the Pearl Harbor Attack; Re-designated 394th Bombardment Squadron (Heavy) on April 22, 1942 Currently: 394th Combat Training Squadron, Whiteman AFB, Missouri^[4]

5th Aero Squadron	May 5, 1917	Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons^[1] Instructional flying squadron Re-designated: Squadron A, Souther Field, Georgia, July 1918 Demobilized: November 11, 1918
5th Aero Squadron	Constituted in the Air Service, United States Army on June 23, 1919 at Hazelhurst Field, NY, as the 5th Aero Squadron; Transferred in November 1919 to Mitchel Field, NY Constituted in the Army Air Service as the 5th Squadron (Observation) on March 14, 1921; Re-designated 5th Observation Squadron on January 25, 1923; Consolidated in April 1924 with the 5th Aero Squadron^[3] Currently: 5th Reconnaissance Squadron, Beale AFB, California^[4]

6th Aero Squadron	March 13, 1917	Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons^[1] Garrisoned at: Luke Field, Ford Island, Hawaii
6th Aero Squadron	Constituted in the Army Air Service as the 6th Squadron (Pursuit) on March 14, 1921; Re-designated as the 6th Pursuit Squadron on January 25, 1923; >Re-designated: 6th Pursuit Squadron on January 25, 1923^[3] Re-designated: 6th Night Fighter Squadron on January 17, 1943; Inactivated on February 20, 1947^[4]

7th Aero Squadron	March 29, 1917	Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons^[1]^[4] Garrisoned in Panama Canal Zone
7th Aero Squadron	Constituted in the Army Air Service as the 7th Squadron (Observation) on March 14, 1921; Re-designated: 7th Observation Squadron on January 25, 1925; Participated in the “Goodwill Flights” to El Salvador and Nicaragua March 13–19, 1935, to Columbia December 14–18, 1936, to Guatemala February 8–11, 1938 and El Salvador April 19–22, 1938. Flew mercy missions to support earthquake relief efforts in and near Santiago, Chile, January 28 – February 13, 1939^[3] Re-designated: 397th Bombardment Squadron (Heavy) on May 11, 1942; Inactivated on November 1, 1946.^[4]

8th Aero Squadron	June 21, 1917	AEF: December 8, 1917 – May 3, 1919 Corps Observation Squadron Combat with IV and VI Corps Observation Groups^[2] Patrols in the Toul Sector St. Mihiel Offensive Campaign Aisne-Marne Defensive Campaign^[2]
8th Aero Squadron	Returned to the United States in June 1919 and assigned to Kelly Field, Texas; Re-designated 8th Surveillance Squadron; Transferred on August 13, 1919, less Flight B, to the U. S. Army Airdrome, McAllen, TX. Participated in the United States Army Border Air Patrol with Mexico August 1919 – June 1921 and flood relief operations in the Rio Grande Valley in June 1922. Flight B transferred August 13, 1920 to Pope Field, NC. Constituted in the Army Air Service as the 8th Squadron (Attack) on March 14, 1921; Entire squadron transferred July 2, 1921 to Kelly Field, TX. Re-designated as the 8th Attack Squadron March 25, 1923; Reorganized and re-designated 8th Bombardment Squadron on December 1, 1939^[3] Currently: 8th Special Operations Squadron, Hurlburt Field, Florida^[4]

9th Aero Squadron	June 14, 1917	AEF: October 28, 1917 – June 8, 1919 Night Observation Squadron Combat with First Army Observation Group^[2] Patrols in the Toul Sector St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2]
9th Aero Squadron	Returned to the United States in June 1919 and assigned to March Field, California Constituted in the Army Air Service as the 9th Squadron (Observation) on March 14, 1921; Inactivated on June 29, 1922 at March Field; Re-designated as the 9th Observation Squadron on January 25, 1923. Re-designated as the 9th Bombardment Squadron March 24, 1923; Organized by June 1929 in the Regular Army Reserve at Kelly Field, TX. Conducted annual summer training at Kelly Field; Activated on April 1, 1931, less Reserve personnel, at March Field, CA. Transferred on December 5, 1934 to Hamilton Field, CA. Re-designated as the 9th Bombardment Squadron (Heavy) on December 6, 1939; Transferred on September 7, 1940 to Fort Douglas, UT. Transferred on January 13, 1941 to Salt Lake City, UT. Ground elements departed from the port of San Francisco on November 6 on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, CA, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor^[3] Currently: 9th Bomb Squadron, Dyess AFB, Texas^[4]

10th Aero Squadron	May 31, 1917	AEF: December 26, 1917 – May 1919 Service Support Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: June 1919^[5]

11th Aero Squadron	June 26, 1917	AEF: January 1, 1918 – May 1, 1919 Day Bombardment Squadron Combat with 1st Day Bombardment Group^[2] Patrols in the Toul Sector St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2]
11th Aero Squadron	Returned to the United States in June 1919, assigned to Fort Bliss, Texas; Participated in the Mexican Border Patrol August–November 1919 Constituted in the Army Air Service as the 11th Squadron (Observation) on March 14, 1921; Re-designated as the 11th Bombardment Squadron on January 25, 1923; Conducted bombing tests on obsolete warships off Chesapeake Bay September 5, 1923; Transferred on December 5, 1934 to Hamilton Field, CA. Transferred on September 2, 1940 to Fort Douglas, UT. Transferred on January 18, 1941 to Salt Lake City, UT. Ground elements departed from Salt Lake City November 13, 1941 and sailed from the port of San Francisco on November 21 on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, CA, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor December 7, 1941;^[3] fought in the Pacific Theater during World War II; Inactivated on November 2, 1945. Consolidated (January 11, 1982) with 11th Pilotless Bomber Squadron, Light, which was constituted on June 17, 1954; Activated on September 1, 1954; Re-designated 11th Tactical Missile Squadron on June 8, 1955; Re-designated 11th Bomb Squadron on June 24, 1994 Currently: 11th Bomb Squadron, Barksdale AFB, Louisiana^[4]

12th Aero Squadron	June 2, 1917	AEF: January 16, 1918 – June 17, 1919 Corps Observation Squadron Combat with I Corps Observation Group^[2] Patrols in the Toul, Baccarat (Luneville), Aisne-Marne, and Vesle Sectors Aisne-Marne Offensive Campaign St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2]
12th Aero Squadron	Returned to the United States in June 1919, assigned to Scott Field, Illinois; Transferred on October 13, 1919 to Kelly Field, TX, then on January 9, 1920 to Biggs Field, TX. Participated in the Mexican Border Patrol January 1920 – May 1921 and Forest Fire Patrol May–August 1921 Constituted in the Army Air Service as the 12th Squadron (Observation) on March 14, 1921; Re-designated 12th Observation Squadron on January 25, 1923; Flew reconnaissance missions in April 1929 for the 10th Cavalry in the vicinity of Nogales, NM, during the Escobar-Topete Revolution.^[3] Currently: 12th Reconnaissance Squadron, Beale AFB, California^[4]

13th Aero Squadron	June 14, 1917	AEF: December 26, 1917 – March 13, 1919 Pursuit Squadron Combat with 2d Pursuit Group<^[2] Patrols in the Toul and Verdun Sectors St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2] Demobilized on 29 March 1919
13th Aero Squadron	Constituted in the Regular Army on June 3, 1919 at Rockwell Field, California, as the 104th Aero Squadron; Transferred on July 6, 1919 to Scott Field, IL. Transferred on November 6, 1919, less one flight, to Biggs Field, TX. One flight operated from Camp Marfa, TX, until September 3, 1920. Another flight operated from Post Field, OK. Constituted in the Army Air Service as the 13th Squadron (Attack) on March 14, 1921; Re-designated as the 13th Attack Squadron on January 25, 1923. Inactivated on June 27, 1924 at Kelly Field; Organized in June 1924 in the Regular Army Reserve at Kelly Field, TX. Conducted summer training at Fort Crockett, TX; Activated on November 1, 1929, less Reserve personnel, at Barksdale Field, LA;^[3] Consolidated with 13th Aero Squadron, October 16, 1936 Currently: 13th Bomb Squadron, Whiteman AFB, Missouri^[4]

14th Aero Squadron	May 9, 1917	Formed as: 1st Aviation School Squadron Instructional flying squadron Re-designated: Squadron A, Rockwell Field, California, July 1918 Demobilized: November 23, 1918
14th Aero Squadron	Constituted in the Army Air Corps on April 1, 1928 at Bolling Field, District of Columbia, as Air Corps Detachment, Bolling Field, and assigned to the Office of Chief of the Air Corps; re-designated March 1, 1935 as the 14th Bombardment Squadron; Consolidated on June 8, 1935 with the 14th Aero Squadron; Inactivated on September 1, 1936 at Bolling Field Organized by December 1937 in the Regular Army Reserve; Conducted summer training at Kelly Field, TX Activated on February 1, 1940, less Reserve personnel, at Hickam Field, TH; Re-designated as the 14th Bombardment Squadron (Heavy) on November 20, 1940. Transferred by flying to Clark Field, Philippines on September 16, 1941; Transferred on December 6, 1941 to Del Monte Field, Philippines;^[3] Squadron was mostly wiped out in the 1941–1942 Battle of the Philippines, surviving personnel and aircraft transferred to Australia in December 1941, later reassigned to other units Inactivated on April 2, 1946; Disbanded on August 19, 1949; Never again activated.^[4]

15th Aero Squadron	May 9, 1917	Formed as 2d Aviation School Squadron Training Squadron: Hazelhurst Field, New York Demobilized: September 18, 1919
15th Aero Squadron	Constituted in the Army Air Service as the 15th Squadron (Observation) on March 14, 1921; Re-designated as the 15th Observation Squadron on January 25, 1923; Consolidated in 1924 with the 15th Aero Squadron; Inactivated on August 1, 1927 Activated on May 15, 1928; Re-designated: 15th Observation Squadron (Medium) on January 13, 1942;^[3] Currently: 15th Reconnaissance Squadron, Creech AFB, Nevada^[4]

16th Aero Squadron	May 9, 1917	Formed as: 3d Aviation School Squadron AEF: January 8, 1918 – May 7, 1919 Construction Squadron Demobilized: May 22, 1919
16th Aero Squadron	Constituted in the Army Air Service as the 16th Squadron (Observation) on March 14, 1921; Re-designated as the 16th Observation Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 16th Aero Squadron;^[3] Re-designated 16th Reconnaissance Squadron (Bomber) on May 31, 1943; Reconstituted on September 19, 1985 and consolidated with 16th Photographic Reconnaissance Squadron as 16th Tactical Electronic Warfare Squadron Currently: 16th Electronic Warfare Squadron, Eglin AFB, Florida^[4]

17th Aero Squadron	June 16, 1917	AEF: August 4, 1917 – March 20, 1919 Pursuit Squadron (Primarily assigned to Royal Air Force)^[2] Patrols in the St. Quentin-Arras, Amiens-Arras, and Nieuport-Ypres Sector (Belgium) Somme Defensive Campaign Somme Offensive Campaign^[2] Demobilized: April 1, 1919
17th Aero Squadron	The 147th Aero Squadron returned from AEF to Selfridge Field, MI in June 1919 Constituted in the Army Air Service as the 17th Squadron (Pursuit) on March 14, 1921; Re-designated as the 17th Pursuit Squadron on January 25, 1923; Reconstituted, and consolidated (October 17, 1936) with 17th Aero Squadron Departed from the port of San Francisco, CA, about mid-November 1940 on the U.S.A.T. Etolin and arrived in the Philippines; Transferred on December 5, 1940 to Nichols Field, Philippines;^[3] Squadron was wiped out in the 1941–1942 Battle of the Philippines, survivors reached Australia in March 1942 and were reassigned to other units, Inactivated on April 2, 1946 Activated and organized on December 1, 1971 as 17th Wild Weasel Squadron Currently: 17th Weapons Squadron, Nellis AFB, Nevada^[4]

18th Aero Squadron	August 1917	Instructional flying squadron Re-designated: Squadron B, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]
18th Aero Squadron	Constituted in the Army Air Service as the 18th Observation Squadron on June 10, 1922; Consolidated on March 17, 1925 with the 18th Aero Squadron; Reorganized and re-designated 40th Attack Squadron on March 1, 1935; consolidated unit re-designated as the 18th Headquarters Squadron, Bolling Field, District of Columbia.;^[3] Reconstituted and consolidated (1964) with 18th Observation Squadron (Long Range, Light Bombardment) which was constituted on March 1, 1935; Re-designated: 408th Bombardment Squadron (Medium) on April 22, 1942; Inactivated on April 29, 1946 Re-designated 408th Bombardment Squadron (Medium) on October 6, 1958; Discontinued, and inactivated, on January 1, 1962.^[4]

19th Aero Squadron	June 14, 1917	Formed as 14th Aero Squadron AEF: January 1, 1918 – April 5, 1919 Assigned to Seventh Aviation Instruction Center Demobilized: April 14, 1919
19th Aero Squadron	Constituted in the Army Air Service as the 19th Squadron (Pursuit) on August 30, 1921; Inactivated on June 29, 1922; Re-designated 19th Pursuit Squadron on January 25, 1923 and activated May 1, 1923;^[3] Re-designated: 19th Fighter Squadron on May 15, 1942 Currently 19th Fighter Squadron, Hickam Field, Hawaii^[4]

20th Aero Squadron	June 26, 1917	AEF: December 31, 1917– May 2, 1919 Day Bombardment Squadron Combat with 1st Day Bombardment Group^[2] Patrols in the Toul Sector St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2]
20th Aero Squadron	Returned to the United States in June 1919, assigned to Ellington Field, Texas; Constituted in the Army Air Service as the 20th Squadron (Bombardment) on August 30, 1921; Re-designated as the 20th Bombardment Squadron on January 25, 1923. Conducted bombing tests on obsolete warships off Chesapeake Bay September 5, 1923^[3] Currently: 20th Bomb Squadron, Barksdale AFB, Louisiana^[4]

21st Aero Squadron	June 13, 1917	AEF: January 23, 1918 – April 6, 1919 AEF: Flying School Squadron, Third Air Instructional Center,Issoudun Aerodrome, France Demobilized: April 14, 1919
21st Aero Squadron	Constituted in the Army Air Service as the 21st Observation Squadron on March 24, 1923, consolidated with 21st Aero Squadron, same date; Demobilized on October 1, 1933. Reconstituted and consolidated with the 21st Observation Squadron on December 2, 1936; The 21st Observation Squadron was constituted in the Army Air Forces on March 1, 1935;^[3] Re-designated: 411th Bombardment Squadron (Heavy) on April 22, 1942;Inactivated on April 15, 1946 Consolidated (Sep 19, 1985) with 911th Air Refueling Squadron, Heavy, which was constituted on May 28, 1958 Currently: 911th Air Refueling Squadron, MacDill AFB, Florida^[4]

22d Aero Squadron	June 20, 1917	AEF: February 16, 1918 – June 15, 1919 Pursuit Squadron Combat with 2d Pursuit Group^[2] Patrols in the Amiens and Toul Sectors Somme Defensive Campaign St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2] Demobilized: June 17, 1919
22d Aero Squadron	The 135th Aero Squadron returned from AEF to Post Field, OK in June 1919 Constituted in the Army Air Service as the 22d Squadron (Observation) on March 14, 1921; Re-designated as the 22nd Observation Squadron on January 25, 1923; Consolidated on April 17, 1937 with the 22d Aero Squadron^[3] Currently: 22d Intelligence Squadron, Fort George G. Meade, Maryland^[4]

23d Aero Squadron	June 23, 1917	Formed as 18th Aero Squadron AEF: July 25, 1918 – March 8, 1919 Primarily trained in england as an aircraft maintenance squadron, did not see combat. Demobilized: March 22, 1919
23d Aero Squadron	Constituted in the Army Air Service as the 22d Squadron (Observation) on March 14, 1921; re-designated 23d Bombardment Squadron on January 25, 1923 Consolidated on April 8, 1924 with the 23d Aero Squadron^[3] Currently 23d Bomb Squadron, Minot AFB, North Dakota^[4]

24th Aero Squadron	May 1, 1917	AEF: January 24, 1918 – August 2, 1919 Army Observation Squadron Combat with First Army Observation Group Demobilized: October 1, 1919^[2] St. Mihiel Offensive Campaign Meuse-Argonne Offensive Campaign^[2] Demobilized on 1 October 1919
24th Aero Squadron	Constituted in the Army Air Service as the 24th Squadron (Pursuit) on March 14, 1921; Re-designated as the 24th Pursuit Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 24th Aero Squadron;^[3] Served in Panama Canal Zone. Inactivated on October 15, 1946^[4]

25th to 49th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
25th Aero Squadron	June 13, 1917	AEF: January 24, 1918 – June 6, 1919 Pursuit Squadron Combat with 4th Pursuit Group Demobilized: June 17, 1919
25th Aero Squadron	Constituted in the Army Air Service as the 25th Squadron (Bombardment) on March 14, 1921; Assigned to the Panama Canal Department; Re-designated as the 25th Bombardment Squadron on January 25, 1923; Consolidated (1924) with 25th Aero Squadron.^[3] Currently: 25th Space Range Squadron, Schriever AFB, Colorado^[4]

26th Aero Squadron	May 26, 1917	Formed as: 1st Reserve Aero Squadron AEF September 17, 1917 – May 27, 1919 Instructional Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, June 7, 1919
26th Aero Squadron	Constituted in the Army Air Service as the 26th Squadron (Attack) on March 14, 1921; Re-designated as the 26th Attack Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 26th Aero Squadron; Re-designated: 26th Bombardment Squadron on December 6, 1939;^[3] Inactivated on October 20, 1948 Re-designated 26th Tactical Fighter Squadron on September 24, 1973; Activated on September 30, 1973 Currently: 26th Space Aggressor Squadron (USAFR), Schriever AFB, Colorado^[4]

27th Aero Squadron	May 8, 1917	AEF: 5 March 1918–19 Mar 1919 Pursuit Squadron Combat with 1st Pursuit Group Medal of Honor recipient: Lt Frank Luke Returned to the United States in June 1919, assigned to Selfridge Field, Michigan
27th Aero Squadron	Constituted in the Army Air Service as the 27th Squadron (Pursuit) on March 14, 1921; Re-designated as the 27th Pursuit Squadron on January 25, 1923;^[3] Re-designated: 27th Fighter Squadron on May 15, 1942 Currently: 27th Fighter Squadron, Langley AFB, Virginia^[4]

28th Aero Squadron	June 22, 1917	AEF: March 5, 1918 – May 31, 1919 Pursuit Squadron Combat with 3d Pursuit Group Demobilized: June 16, 1919
28th Aero Squadron	Constituted in the Army Air Service as the 28th Squadron (Bombardment) on March 14, 1921; Consolidated on January 9, 1922 with the 28th Aero Squadron; Inactivated on June 28, 1922 at Mather Field. Activated on September 1, 1922 at Clark Field, PI, and assigned to the Philippine Department;^[3] Squadron suffered severe losses in the 1941–1942 Battle of the Philippines, withdrawn to Australia, December 1941. Fought in Pacific Theater, Inactivated on 1 October 19834 Re-activated July 1, 1987 Currently: 28th Bomb Squadron, Dyess AFB, Texas^[4]

29th Aero Squadron	March 1918	Instructional flying squadron Re-designated: Squadron A, Brooks Field, Texas, July 1918 Demobilized: November 1918
29th Aero Squadron	Constituted in the Army Air Service as the 29th Pursuit Squadron on March 23, 1924; Consolidated in 1935 with the 29th Aero Squadron;^[3] Re-designated 29th Fighter-Interceptor Squadron on March 23, 1953 Currently 29th Training Systems Squadron, Eglin AFB, Florida^[4]

30th Aero Squadron	June 13, 1917	AEF September 19, 1917 – April 5, 1919 Instructional Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, June 7, 1919
30th Aero Squadron	Re-constituted in the Army Air Service as the 30th Bombardment Squadron on January 25, 1923; Transferred on October 25, 1935 to March Field, CA. Re-designated as the 30th Bombardment Squadron (Heavy) on December 6, 1939. Transferred on June 1, 1941 to Albuquerque, NM. Departed from the port of San Francisco on October 4, 1941 on the U.S.A.T. Willard A. Holbrook and arrived at Manila, PI, on October 23, 1941. Transferred to Clark Field, PI, the same day.^[3] Squadron suffered severe losses in the 1941–1942 Battle of the Philippines, was withdrawn to Australia in December 1941. Returned to combat in Pacific Theater in 1944, remained in Far East Air Force after World War II ended, engaged in strategic bombardment of North Korea, 1950–1953; inactivated February 1, 1963. Consolidated September 19, 1985 with United States Air Force Thunderbirds, Nellis AFB, Nevada^[4]

31st Aero Squadron	June 26, 1917	AEF: September 16, 1917 – April 5, 1919 Instructional Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, April 14, 1919
31st Aero Squadron	Re-constituted in the Army Air Service as the 31st Bombardment Squadron on March 24, 1923; Transferred on December 5, 1934 to Hamilton Field, CA. Departed from the port of San Francisco on the U.S.A.T. Republic on February 1, 1938 to reinforce the Hawaiian Department. Arrived at Honolulu, TH, on February 8, 1938 and transferred to Hickam Field, TH, the same day;^[3] Squadron suffered severe losses in the Pearl Harbor Attack, was re-equipped and returned to combat in the Pacific Theater in 1942, remained in Far East Air Force after World War II ended, engaged in strategic bombardment of North Korea, 1950–1953; inactivated February 1, 1963 Reactivated July 1, 1986 Currently: 31st Test and Evaluation Squadron, Edwards AFB, California^[4]

32d Aero Squadron	June 13, 1917	AEF: September 20, 1917 – April 5, 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, April 5, 1919
32d Aero Squadron	Re-constituted in the Army Air Service as the 31st Bombardment Squadron on March 24, 1923;^[3] Deployed to European Theater of Operations (ETO) in August 1942; Discontinued, and inactivated, on June 8, 1964; Re-activated as 32d Air Refueling Squadron on December 23, 1964 Currently: 32d Air Refueling Squadron, McGuire AFB, New Jersey^[4]

33d Aero Squadron	June 12, 1917	AEF: September 16, 1917 – April 5, 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, April 5, 1919
33d Aero Squadron	Re-constituted in the Army Air Service as the 33d Pursuit Squadron on March 24, 1923;^[3] World War II service as part of the Iceland Base Command (IBC), Inactivated on June 22, 1945; Re-designated as 33d Fighter-Bomber Squadron on March 3, 1953 and re-activated Currently: 33d Special Operations Squadron, Cannon AFB, New Mexico^[4]

34th Aero Squadron	May 10, 1917	Formed as: 2d Company "H", Camp Kelly, Texas AEF: September 19, 1917 – May 27, 1919 Instructional Squadron, 2d Air Instructional Center, Tours Aerodrome Demobilized, April 10, 1919
34th Aero Squadron	Re-constituted in the Army Air Service as the 34th Pursuit Squadron on March 24, 1923; Reorganized and re-designated as the 34th Attack Squadron on March 1, 1935; Reorganized and re-designated as the 34th Bombardment Squadron on October 17, 1939;^[3] World War II service in the Mediterranean Theater of Operations (MTO) Currently: 34th Bomb Squadron, Ellsworth AFB, South Dakota^[4]

35th Aero Squadron	June 12, 1917	AEF: September 20, 1917 – March 9, 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, March 19, 1919
35th Aero Squadron	Re-constituted in the Army Air Service as the 35th Pursuit Squadron on March 24, 1923;^[3] Re-designated: 35th Fighter Squadron on May 15, 1942; fought in Pacific Theater during World War II; Korean War 1950–1953 Currently 35th Fighter Squadron, Kunsan AB, South Korea^[4]

36th Aero Squadron	June 12, 1917	AEF: September 19, 1917 – March 25, 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, April 7, 1919
36th Aero Squadron	Re-constituted in the Army Air Service as the 36th Pursuit Squadron on March 24, 1923;^[3] Re-designated: 36th Fighter Squadron on May 15, 1942; fought in Pacific Theater during World War II; Korean War 1950–1953 Currently 36th Fighter Squadron, Osan AB, South Korea.^[4]

37th Aero Squadron	June 13, 1917	AEF: September 18, 1917 – April 5, 1919 Aircraft Repair Squadron, 3d Air Instructional Center, Issoudun Aerodrome Demobilized, April 7, 1919
37th Aero Squadron	Re-constituted in the Army Air Service as the 37th Pursuit Squadron on March 24, 1923; Re-designated as the 37th Bombardment Squadron on December 1, 1939;^[3] Deployed to European Theater of Operations (ETO) during World War II Currently 37th Bomb Squadron, Ellsworth AFB, South Dakota^[4]

38th Aero Squadron	August 1917	Instructional flying squadron Re-designated: Squadron A, Chanute Field, Illinois, July 1918 Demobilized: November 1918
38th Aero Squadron	Constituted in the Army Air Service as the 37th Pursuit Squadron on March 24, 1923; Activated on August 1, 1933 at Selfridge Field, MI; Consolidated in 1933 with the 38th Aero Squadron, Reorganized and re-designated 38th Observation Squadron Aircraft and crews began departing Hamilton Field, CA, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor,^[3] suffered severe damage and was returned to the United States. Re-designated: 427th Bombardment Squadron (Heavy) on April 22, 1942; Deployed to European Theater of Operations (ETO), September 12, 1942; Discontinued, and inactivated, on January 1, 1962. Re-activated as 427th Reconnaissance Squadron, May 1, 2012, assigned to Beale AFB, California^[4]

39th Aero Squadron	December 1917	Instructional flying squadron Re-designated: Squadron A, Rich Field, Texas, July 1918 Demobilized: November 1918
39th Aero Squadron	Constituted in the Army Air Service as the 39th School Squadron on March 24, 1923; Activated on August 1, 1927 at Kelly Field, TX and attached to the Air Corps Advanced Flying School. Consolidated in 1933 with the 39th Aero Squadron; Inactivated on September 1, 1936; Reactivated on February 1, 1940 at France Field, CZ, and assigned to the Panama Canal Department; Returned to the United States March 15, 1944, re-designated: 101st Photographic Reconnaissance Squadron; inactivated December 25, 1945.^[4]

40th Aero Squadron	July 1917	Instructional flying squadron Re-designated: Squadron A, Selfridge Field, Michigan, July 1918 Demobilized: November 1918 ^[6]
40th Aero Squadron	Constituted in the Army Air Service as the 40th Squadron (School) on June 10, 1922; Re-designated as the 40th School Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 40th Aero Squadron; Reorganized and re-designated 40th Attack Squadron on March 1, 1935 and attached to the Air Corps Advanced Flying School. Relieved from the Air Corps Advanced Flying School September 1, 1936, assigned to the General Headquarters Air Force, and inactivated at Kelly Field, TX; Disbanded on July 1, 1940.^[3]

41st Aero Squadron	July 9, 1917	AEF: March 4, 1918 – June 28, 1919 Pursuit Squadron 5th Pursuit Group (Did not see combat) Demobilized: July 2, 1919
41st Aero Squadron	Constituted in the Army Air Service as the 41st Squadron (School) on June 10, 1922; Organized on July 7, 1922 at Kelly Field, TX. Re-designated as the 41st School Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 41st Aero Squadron; Reorganized and re-designated March 1, 1935 as the 41st Observation Squadron (Long Range, Amphibian), assigned to the 2nd Wing, and attached to the Air Corps Advanced Flying School. Re-designated as the 41st Reconnaissance Squadron on September 1, 1936; Inactivated at Kelly Field, TX and re-organized on January 20, 1937 as a Regular Army Reserve unit at Love Field, Dallas, TX; Activated on February 1, 1940 at Langley Field, VA;^[3] deploying in early 1943 to Twelfth Air Force in North Africa. Engaged in long-range strategic bombing missions in the Mediterranean Theater of Operations (MTO) 1943–1945; Inactivated on February 28, 1946. Reactivated as SAC B-47 Squadron on August 11, 1958; Inactivated as SAC 429th Bombardment Squadron (Medium), January 1, 1962^[4]

42d Aero Squadron	July 1917	Instructional flying squadron Re-designated: Squadron I, Wilbur Wright Field, Ohio, July 1918 Demobilized: November 1918 ^[6]
42d Aero Squadron	Constituted in the Army Air Service as the 42d School Squadron on June 10, 1922 Consolidated on April 8, 1924 with the 42d Aero Squadron Reorganized and re-designated 42d Bombardment Squadron on March 1, 1935 Inactivated on February 1, 1963 as the 42d Bombardment Squadron (Heavy) at Wright-Patterson AFB, Ohio^[4] Re-designated and activated as 42d Attack Squadron, November 9, 2006, Creech AFB, Nevada.^[7]

43d Aero Squadron	June 13, 1917	AEF: October 25, 1918 – April 17, 1919 Instructional Squadron Demobilized: April 17, 1919
43d Aero Squadron	Constituted in the Army Air Service as the 43d Squadron (School) on June 10, 1922; Organized on July 7, 1922 at Kelly Field, TX. Re-designated as the 43rd School Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 43rd Aero Squadron; Inactivated on September 1, 1936 at Kelly Field, TX.;^[4] Consolidated (1939) with the 43d Pursuit Squadron (Interceptor) which was constituted on December 22, 1939; Re-designated: 43d Fighter Squadron on May 15, 1942 Currently: 43d Fighter Squadron, Tyndall AFB, Florida^[4]

44th Aero Squadron	July 1917	Instructional flying squadron Re-designated: Squadron K (later P), Wilbur Wright Field, Ohio. July 1918 Demobilized: November 1918
44th Aero Squadron	Constituted in the Army Air Service as the 44th Squadron (Observation) on June 10, 1922; Organized on June 26, 1922 at Post Field, OK; Re-designated as the 44th Observation Squadron on January 25, 1923. Consolidated on April 8, 1924 with the 44th Aero Squadron; Inactivated on July 31, 1927 Activated on April 1, 1931 at France Field, CZ; Re-designated: 430th Bombardment Squadron, April 22, 1942; Returned to the United States October 31, 1942; Re-designated: 430th Bombardment Squadron (Very Heavy) on March 28, 1944, saw combat in Pacific Theater; Inactivated on April 14, 1946^[4]

45th Aero Squadron	July 1917	Transferred from Chandler Field, Pennsylvania Instructional flying squadron Re-designated: Squadron A, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918 ^[6]

46th Aero Squadron	April 1918	Stationed at Ellington Field, Texas Hazelhurst Field, New York Roosevelt Field, New York Demobilized: January 1919^[6]
46th Aero Squadron	Constituted in the Army Air Service as the 46th School Squadron on June 10, 1922 Consolidated on April 8, 1924 with the 46th Aero Squadron; Assigned to the Air Corps Primary Flying School, Randolph Field, Texas, December 31, 1931.^[3] Subsequent history and lineage undetermined.

47th Aero Squadron	July 20, 1917	AEF: March 19, 1918 – July 1919 Service Squadron Demobilized: July 1919^[6]
47th Aero Squadron	Constituted in the Army Air Service as the 47th School Squadron on June 10, 1922; Consolidated on April 8, 1924 with the 47th Aero Squadron; Disbanded on April 20, 1944.^[3]

48th Aero Squadron	August 4, 1917	AEF: November 4, 1917 – July 29, 1919 Airfield Construction Squadron, various stations in France Demobilized, April 7, 1919
48th Aero Squadron	Constituted in the Army Air Service as the 48th School Squadron on June 10, 1922 Consolidated on April 8, 1924 with the 48th Aero Squadron; Inactivated on September 1, 1931. Re-designated 48th Pursuit Squadron on March 1, 1935;^[3] Re-designated 48th Fighter Squadron on May 15, 1942; Re-designated 48th Fighter-Interceptor Squadron on September 11, 1952 Currently: 48th Flying Training Squadron, Columbus AFB, Mississippi^[4]

49th Aero Squadron	August 6, 1917	AEF: January 24, 1918 – March 1919 Pursuit Squadron Combat with 2d Pursuit Group The 166th Aero Squadron returned from AEF to Ellington Field, Texas and demobilized on 22 March 1919
49th Aero Squadron	Constituted in the Army Air Service as the 49th Squadron (Bombardment) on March 14, 1921; Re-designated as the 49th Squadron (Bombardment) on March 14, 1921. Attached to the 1st Provisional Air Brigade May 6 – October 3, 1921 while supporting the battleship bombing tests off the Virginia coast. Transferred on June 30, 1922 to Langley Field, VA. Transferred on August 10, 1922 to Phillips Field, MD. Attached to the Ordnance Department at Aberdeen Proving Ground to conduct tests with newly developed aerial bombs August 1922 – January 1928. Re-designated as the 49th Bombardment Squadron on January 25, 1923; Consolidated on October 16, 1936 with the 49th Aero Squadron; Unit B-17s located the Italian luxury liner S.S. Rex about 725 miles out to sea on the famous long range interception mission conducted on May 12, 1938; During World War II, deployed to the Mediterranean Theater of Operations (MTO); Inactivated on April 1, 1963 Reactivated as 49th Test Squadron on July 1, 1986 Currently: 49th Test and Evaluation Squadron, Barksdale AFB, Louisiana^[4]

50th to 74th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
50th Aero Squadron	August 6, 1917	AEF: January 24, 1918 – May 1, 1919 Corps Observation Squadron Combat with I Corps Observation Group Medal of Honor Winners: Erwin R. Bleckley; Harold E. Goettler; Lost Battalion (World War I)
50th Aero Squadron	Constituted in the Army Air Service as the 50th Squadron (Observation) on March 14, 1921; Attached to the 1st Provisional Air Brigade May 6 – October 3, 1921 while supporting the battleship bombing tests off the Virginia coast; Inactivated on August 1, 1927; Activated on November 1, 1930, less Reserve personnel, at Luke Field, Hawaii; Re-designated as the 50th Reconnaissance Squadron;^[3] Re-designated 431st Bombardment Squadron (Heavy) on April 22, 1942; Inactivated on October 20, 1947 Re-designated 50th Airmanship Training Squadron and activated on October 1, 1983; Currently: 50th Education Squadron, United States Air Force Academy, Colorado^[4] Inactivated on 1 August 2005.

52d Aero Squadron	August 1917	Organized as a Construction Squadron at Kelly Field, Texas Re-designated 464th Aero Squadron (Construction and repair), February 1918 AEF: February 1918 – January 1919 Demobilized: February 1919^[6]
52d Aero Squadron	Constituted in the Army Air Service as the 53d School Squadron, and assigned to the 14th School Group, Brooks Field, Texas on February 6, 1923; Consolidated on October 14, 1936 with the 52d Aero Squadron.^[3] Subsequent history and lineage undetermined.

53d Aero Squadron	August 1917	Organized as a Construction Squadron at Kelly Field, Texas Re-designated 465th Aero Squadron (Construction and repair), February 1918 AEF: February 1918 – January 1919 Demobilized: February 1919^[6]
53d Aero Squadron	Constituted in the Army Air Service as the 53d School Squadron, and assigned to the 15th School Group, March Field, California on February 6, 1923; Consolidated on October 14, 1936 with the 53d Aero Squadron; Disbanded on April 20, 1944.^[3]

54th Aero Squadron	August 1917	Organized as a Construction Squadron at Kelly Field, Texas Re-designated 466th Aero Squadron (Construction), February 1918 AEF: February 1918 – January 1919 Demobilized: February 1919^[6]
54th Aero Squadron	Constituted in the Army Air Service as the 54th School Squadron, and assigned to the 15th School Group, March Field, California on February 6, 1923; Re-designated as the 58th Service Squadron on January 16, 1923; Reorganized and re-designated 54th Bombardment Squadron on March 1, 1935, assigned to the 2d Bombardment Group, and attached to the Air Corps Tactical School, Maxwell Field, Alabama. Consolidated on October 14, 1936 with the 54th Aero Squadron; Disbanded on May 1, 1942.^[3]

55th Aero Squadron	August 25, 1917	Re-designated: 467th Aero Squadron (Construction), February 1918 AEF: November 4, 1917 – March 4, 1918 Demobilized: March 16, 1919
55th Aero Squadron	Re-constituted in the Army Air Service on March 24, 1923 as the 55th Pursuit Squadron^[3] Currently: 55th Fighter Squadron, Shaw AFB, South Carolina^[4]

63d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron B, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918 ^[6]

64th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron C, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918 ^[6]

65th Aero Squadron	April 1918	Transferred from Kelly Field, Texas Re-designated:Instructional flying squadron Squadron A, Park Field, Tennessee, July 1918 Demobilized: November 1918 ^[6]
65th Aero Squadron	Constituted in the Army Air Service on June 6, 1921 as Air Park No. 10, Luke Field, Hawaii. Re-designated as the 65th Service Squadron on December 22, 1922; The 65th Aero Squadron was consolidated with the 65th Service Squadron on October 16, 1936; Reorganized and re-designated January 25, 1938 as Base Headquarters and 17th Air Base Squadron Disbanded April 1, 1943 as HHS, 17th Service Group.^[3]

66th Aero Squadron	May 1918	Instructional flying squadron Re-designated:Squadron A, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 ^[6]
66th Aero Squadron	Constituted in the Army Air Service on2 June 1921 as Air Park Ho 11, Nichols Field, Philippines; Re-designated as the 66th Service Squadron on January 25, 1923.; The 66th Aero Squadron was consolidated with the 66th Service Squadron in October 1936; Consolidated unit reorganized and re-designated as Base Headquarters and 20th Air Base Squadron.; Reorganized and re-designated September 1, 1940 as HHS, 20th Air Base Group (Reinforced)^[3]

67th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron B, Brooks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

68th Aero Squadron	June 1918	Transferred from Rockwell Field, California Re-designated:Instructional flying squadron Squadron A, March Field, California, July 1918 Demobilized: November 1918 ^[6]

69th Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron A, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

70th Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron B, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]
70th Aero Squadron	Constituted in the Army Air Service as the 70th Service Squadron, and assigned to the 14th School Group, Kelly Field, Texas on February 6, 1923; Consolidated on July 27, 1932 with the 70th Aero Squadron; Inactivated on September 1, 1936 at Hamilton Field, California. Personnel and equipment concurrently transferred to the Base Headquarters and 5th Air Base Squadron.^[3]

71st Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron A, Love Field, Texas, July 1918 Demobilized: November 1918 ^[6]

72d Aero Squadron	February 18, 1918	AEF: September 4, 1918 – June 29, 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 11, 1919^[8]
72d Aero Squadron	Constituted in the Army Air Service on February 6, 1923 as the 72d Bombardment Squadron. Consolidated on April 8, 1924 with the 72d Aero Squadron^[3] Currently: 72d Test and Evaluation Squadron, Eglin AFB, Florida^[4]

73d Aero Squadron	February 26, 1918	AEF: September 5, 1918 – June 19, 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 4, 1919 ^[8]
73d Aero Squadron	Constituted in the Regular Army Reserve on October 18, 1927 as the 73d Headquarters Squadron; Re-designated as the 73d Pursuit Squadron on May 8, 1929; Designated mobilization training station was Dodd Field, Texas, 1927–31. Activated on July 15, 1931, less Reserve personnel, at March Field, California; Reorganized and re-designated 73d Attack Squadron on March 1, 1935; Consolidated on June 5, 1936 with the 73d Aero Squadron^[3] Currently: 73d Special Operations Squadron, Cannon AFB, New Mexico^[4]

74th Aero Squadron	February 22, 1918	Construction Squadron, did not deploy to AEF Demobilized: January 28, 1919
74th Aero Squadron	Constituted in the Regular Army Reserve on October 18, 1927 as the 74th Attack Squadron; Re-designated as the 74th Pursuit Squadron on May 8, 1929; Organized Reserve officers assigned to the unit participated in summer training at Fort Crockett, Texas, 1927–33 Activated on October 1, 1933, less Reserve personnel, at Albrook Field, Canal Zone. Consolidated in October 1936 with the 74th Aero Squadron;^[3] Served in Panama Canal Zone during World War II as the 74th Bombardment Squadron, equipped with B-24 Liberators. Inactivated November 1, 1946.^[4] Re-designated: 135th Bombardment Squadron (Medium) on March 27, 1951 as part of federalized New York Air National Guard; Activated on May 1, 1951; Inactivated on December 1, 1952.^[4]

75th to 99th Aero Squadrons

Aero Squadron	Established	World War I
Notes/Subsequent History
75th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron D, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918^[6]
75th Aero Squadron	Constituted in the Regular Army Reserve on October 18, 1927 as the 75th Attack Squadron; Organized Reserve officers assigned to the unit participated in summer training at Fort Crockett, Texas, 1928–30 Activated on September 15, 1930, less Reserve personnel, at Wheeler Field, Hawaii; Consolidated on October 16, 1936 with the 75th Aero Squadron; Reorganized and re-designated Base Headquarters and 18th Air Base Squadron (Single) on March 1, 1938; Disbanded April 1, 1943.^[3]

76th Aero Squadron	April 1918	Transferred from Carlstrom Field Instructional flying squadron Re-designated:Squadron A, Dorr Field, Florida, July 1918 Demobilized: November 1918 ^[6]

77th Aero Squadron	February 20, 1918	Instructional flying squadron Re-designated:Squadron A, Barron Field, Texas, July 1918 Demobilized: November 1918
77th Aero Squadron	Constituted in the Regular Army Reserve on October 18, 1927 as the 77th Observation Squadron; Re-designated as the 77th Pursuit Squadron on May 8, 1929; Conducted annual summer training at Love Field or Hensley Field, Texas. Activated on November 15, 1930, less Reserve personnel, at Mather Field, California; Currently: 77th Fighter Squadron, Shaw AFB, South Carolina^[4]

78th Aero Squadron	February 28, 1918	Instructional flying squadron Re-designated:Squadron A, Hicks Field, Texas, July 1918 Demobilized: November 1918
78th Aero Squadron	Constituted in the Regular Army Reserve on October 18, 1927 as the 78th Observation Squadron; Re-designated as the 78th Pursuit Squadron on May 8, 1929; Organized Reserve officers assigned to the unit participated in summer training at Kelly Field 1927–30. Designated mobilization training station was Dodd Field, Texas, 1927–30. Activated on April 1, 1931, less Reserve personnel, at France Field, Canal Zone; Consolidated in 1933 with the 78th Aero Squadron^[3] Currently: 78th Attack Squadron, Nellis AFB, Nevada^[4]

79th Aero Squadron	February 22, 1918	Instructional flying squadron Re-designated: Squadron B, Hicks Field, Texas, July 1918 Demobilized: November 1918
79th Aero Squadron	Constituted in the Regular Army Reserve on October 18, 1927 as the 79th Observation Squadron; Re-designated as the 79th Pursuit Squadron on May 8, 1929 Activated on April 1, 1933 at Barksdale Field, Louisiana; Consolidated on May 25, 1933 with the 79th Aero Squadron^[3] Currently: 79th Fighter Squadron, Shaw AFB, South Carolina.^[4]

80th Aero Squadron	March 1918	Transferred from Rich Field, Texas Instructional flying squadron Re-designated: Squadron C, Post Field, Oklahoma, July 1918 Demobilized: November 1918 ^[6]
80th Aero Squadron	Constituted on October 18, 1927 as the 80th Observation Squadron. Re-designated as the 80th Service Squadron on May 8, 1929. Activated on November 15, 1930 at Mather Field, California. The 80th Aero Squadron was consolidated with the 80th Service Squadron August 24, 1932. Transferred to Albrook Field, Canal Zone, same day.; Reorganized and re-designated Base Headquarters and 15th Air Base Squadron on September 1, 1937; Disbanded on November 1, 1943^[3]

81st Aero Squadron	March 1918	Transferred from Rich Field, Texas Instructional flying squadron Re-designated:Squadron D, Post Field, Oklahoma, July 1918 Demobilized: November 1918 ^[6]
81st Aero Squadron	Constituted on March 1, 1935 as the Station Complement, Kelly Field and concurrently activated at Kelly Field, Texas. Reorganized and re-designated September 1, 1936 as the 12th Air Base Squadron and assigned to the Air Corps Advanced Flying School. Concurrently consolidated with the 81st Service Squadron. The 81st Aero Squadron was consolidated with the 81st Service Squadron December 1, 1936.; Reorganized and re-designated September 1, 1940 as HHS, 12th Air Base Group (Special).^[3]

82d Aero Squadron	March 1918	Instructional flying squadron Re-designated: Squadron C, Hicks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

84th Aero Squadron	August 1917	Flying School classification squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]

85th Aero Squadron	August 17, 1917	AEF: March 5, 1918 – July 20, 1919 Corps Observation Squadron Combat with Second Army Observation Group and VI Corps Observation Group Demobilized July 31, 1919 ^[6]

86th Aero Squadron	August 17, 1917	AEF: March 25, 1918 – May 23, 1919 Advance Section, Services of Supply (SOS) Air Park Squadron Advanced Branch, 1st Air Depot Behonne Aerodrome Demobilized: May 26, 1919^[8]
86th Aero Squadron	Constituted in the Army Air Corps on March 1, 1935, attached to the Air Corps Tactical School, and organized at Maxwell Field, Alabama; Inactivated on September 1, 1936 at Maxwell Field; Consolidated on December 1, 1936 with the 86th Aero Squadron Activated on February 1, 1940 at Wheeler Field, Hawaii as 86th Observation Squadron; Suffered devastating losses during Pearl Harbor Attack.^[3] Currently 43d Electronic Combat Squadron, Davis-Monthan AFB, Arizona^[4]

87th Aero Squadron	December 1917	Transferred from Selfridge Field, Michigan Instructional flying squadron Re-designated: Squadron B, Park Field, Tennessee, Julyl 1918 Demobilized: November 1918
87th Aero Squadron	Constituted in the Army Air Corps on March 1, 1935, assigned to the 20th Pursuit Group, and organized at Maxwell Field, AL, with personnel from the 51st and 54th School Squadrons; Attached to the Air Corps Tactical School. Inactivated on September 1, 1936 at Maxwell Field, AL.; Consolidated on December 1, 1936 with the 87th Aero Squadron; Organized on March 1, 1935; Inactivated September 1, 1936;^[3] Reconstituted, and consolidated (Mar 21, 1979) with unit constituted as 87th Pursuit Squadron (Interceptor) on January 13, 1942 Currently: 87th Flying Training Squadron, Laughlin AFB, Texas.^[4]

88th Aero Squadron	August 18, 1917	AEF: November 16, 1917 – June 27, 1919 Corps Observation Squadron Combat with III Corps Observation Group
88th Aero Squadron	Returned to the United States on June 27, 1919; Transferred on September 5, 1919 to Langley Field, VA. Constituted in the Army Air Service as the 88th Squadron (Observation) on March 14, 1921; Attached to the 1st Provisional Air Brigade May 6 – October 3, 1921 while supporting the battleship bombing tests off the Virginia coast; Re-designated as the 88th Observation Squadron on January 25, 1923; Re-designated as the 88th Reconnaissance Squadron (Long Range) on December 6, 1939. Ground elements departed from Fort Douglas November 13, 1941 and sailed from the port of San Francisco on November 21 on an army transport en route to the Philippines. Aircraft and crews began departing Muroc Field, CA, on December 6 en route to Hawaii. Elements of the squadron flew their B-17s into Hickam Field at the height of the Japanese attack on Pearl Harbor^[3] Re-designated: 436th Bombardment Squadron (Heavy) April 22, 1942 Currently: 436th Training Squadron, Dyess AFB, Texas^[4]

89th Aero Squadron	August 19, 1917	AEF: November 16, 1917 – March 25, 1919 Construction and maintenance squadron Demobilized: May 19, 1919
89th Aero Squadron	Constituted in the Army Air Corps on March 1, 1935 as the 89th Observation Squadron; Consolidated in October 1936 with the 89th Aero Squadron;^[3] Re-designated: 432d Bombardment Squadron (Medium) on April 22, 1942; inactivated November 26, 1945.^[4]

90th Aero Squadron	August 20, 1917	AEF: November 20, 1917 – May 5, 1919 Corps Observation Squadron Combat with III Corps Observation Group
90th Aero Squadron	Returned to the United States, June 1919 and was assigned to Kelly Field, Texas; Transferred on November 29, 1919 to Sanderson, TX. Participated in the Mexican Border Patrol operations September 1919 – June 1921 Constituted in the Army Air Service as the 90th Squadron (Attack) on March 14, 1921; Re-designated as the 90th Attack Squadron on June 25, 1923; Transferred on July 1, 1926 to Fort Crockett, TX. Flew border reconnaissance missions from Fort Huachuca, AZ, during the Escobar-Topete Revolution April 7 – May 2, 1929; Transferred on February 27, 1935 to Barksdale Field, LA. Reorganized and re-designated 90th Bombardment Squadron (Light) on September 15, 1939^[3] Currently: 90th Fighter Squadron, Elmendorf AFB, Alaska^[4]

91st Aero Squadron	August 21, 1917	AEF: November 15, 1917 – June 17, 1919 Army Observation Squadron Combat with First Army Observation Group
91st Aero Squadron	Returned to the United States June 1919 at Mitchel Field, New York; Transferred to Rockwell Field, CA, on September 29, 1919; Transferred on November 3, 1919 to Mather Field, CA. Transferred on January 24, 1920 to Ream Field, CA. Participated in Mexican Border Patrol operations January 1920 – January 1921 Constituted in the Army Air Service as the 91st Squadron (Observation) on March 14, 1921; Re-designated 91st Observation Squadron on January 25, 1923^[3] Currently: 91st Network Warfare Squadron, Lackland AFB, Texas^[4]

92d Aero Squadron	August 21, 1917	AEF: October 29, 1917 – December 4, 1918 Trained for night bombardment, never saw combat Demobilized December 21, 1918
92d Aero Squadron	Constituted in the Army Air Corps as the 17th Reconnaissance Squadron (Light) on November 20, 1940; Consolidated with the 92d Aero Squadron in 194; Re-designated 433d Bombardment Squadron (Medium) on April 22, 1942; Re-designated 867th Bombardment Squadron, Heavy on October 21, 1943 Currently 867th Reconnaissance Squadron, Creech AFB, Nevada^[4]

93d Aero Squadron	August 21, 1917	AEF: October 20, 1917 – March 13, 1919 Pursuit Squadron Combat with 3d Pursuit Group Demobilized:March 31, 1919
93d Aero Squadron	Constituted in the Regular Army Reserve on May 8, 1929 as the 93rd Attack Squadron; Inactivated on October 31, 1936 at Fort Crockett, Texas by relief of Reserve personnel. Chicago, IL, designated as headquarters location on reorganization, but the unit was never reorganized at that location Consolidated in October 1936 with the 93rd Aero Squadron; Re-designated as the 93rd Bombardment Squadron (Heavy) on October 20, 1939 and organized at March Field, CA; Transferred in June 1941 to Albuquerque, NM. Departed from the port of San Francisco on October 4, 1941 on the U.S.A.T. Willard A. Holbrook and arrived at Manila, Philippines, on October 23, 1941. Transferred to Clark Field, Philippines, the same day. Transferred on December 6, 1941 to Del Monte Field, Philippines.;^[3] Engaged in 1941–1942 Battle of the Philippines before being withdrawn in late December 1941 to Australia. Currently: 93d Bomb Squadron (AFRES), Barksdale AFB, Louisiana^[4]

94th Aero Squadron	August 20, 1917	AEF: 10 November 1917-1 Jun 1919 Pursuit Squadron Combat with 1st Pursuit Group Medal of Honor recipient: Capt. Edward V. Rickenbacker
94th Aero Squadron	Returned to the United States June 1919 at Mitchel Field, New York Constituted in the Army Air Service as the 94th Squadron (Pursuit), March 14, 1921^[3] Currently: 94th Fighter Squadron, Langley AFB, Virginia^[4]

95th Aero Squadron	August 20, 1917	AEF: 10 November 1917-1 Mar 1919 Pursuit Squadron Combat with 1st Pursuit Group Demobilized: March 18, 1919
95th Aero Squadron	Re-constituted and organized on August 12, 1919 in the Air Service, United States Army as the 95th Aero Squadron Constituted in the Army Air Service as the 95th Squadron (Pursuit) on March 14, 1921^[3] Currently: 95th Reconnaissance Squadron, Offut AFB, Nebraska^[4]

96th Aero Squadron	August 20, 1917	AEF: November 10, 1917 – May 2, 1919 Day Bombardment Squadron Combat with 1st Day Bombardment Group
96th Aero Squadron	Returned to the United States, June 1919 and stationed at Ellington Field, TX; Participated in Mexican Border Patrols August 1919-10 January 1920 Constituted in the Army Air Service as the 96th Squadron (Bombardment) on March 14, 1921; Attached to the 1st Provisional Air Brigade May 20 – October 26, 1921 while supporting the battleship bombing tests off the Virginia coast^[3] Currently: 96th Bomb Squadron, Barksdale AFB, Louisiana^[4]

97th Aero Squadron	August 20, 1917	AEF: November 15, 1917 – January 20, 1919 Served as engine maintenance squadron Demobilized February 3, 1919^[10]
97th Aero Squadron	Constituted in the Army Air Corps on March 1, 1935; Consolidated on June 5, 1936 with the 97th Aero Squadron;^[3] Served during World War II as 97th Tactical Reconnaissance Squadron, a training unit for desert warfare in the Mojave Desert, Southern California. Disbanded on April 15, 1944.^[4]^[10] Re-activated as: 6949th Security Squadron, March 1, 1979; Reconstituted and consolidated (Oct 1, 1993) with the 6949th Security Squadron and re-designated the 97th Intelligence Squadron on October 1, 1993 Currently: 97th Intelligence Squadron

98th Aero Squadron	August 1917	Organized as the 98th Aero Squadron (Service) at Kelly Field, Texas AEF: October 1917 – January 1919 Demobilized: February 1919^[6]
98th Aero Squadron	Constituted in the United States Army Air Corps as the 98th School Squadron, and assigned to the Air Corps Technical School, Chanute Field, Illinois on August 1, 1933; Consolidated in 1934 with the 98th Aero Squadron; Reorganized and re-designated 98th Service Squadron on March 1, 1935. Reorganized and re-designated 10th Air Base Squadron on July 1, 1936.^[3] Subsequent lineage undetermined.

99th Aero Squadron	August 21, 1917	AEF: December 12, 1917– May 25, 1919 Corps Observation Squadron Combat with V Corps Observation Group
99th Aero Squadron	Returned to the United States, June 1919 and stationed at Hazelhurst Field, New York; Transferred on August 17, 1919 to Bolling Field, District of Columbia. Constituted in the Army Air Service as the 99th Squadron (Observation) on March 14, 1921^[3] Currently: 99th Reconnaissance Squadron, Beale AFB, California^[4]^[10]

100th to 149th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
100th Aero Squadron	August 20, 1917	AEF: February 1919 – June 1919 Day Bombardment Squadron Assigned to 2d Day Bombardment Group (Did not see combat) Demobilized: June 30, 1919 ^[6]^[10]
100th Aero Squadron	Constituted in the Army Air Corps as the 100th Service Squadron on March 1, 1935 Consolidated in 1935 with the 100th Aero Squadron; Consolidated with the Station Complement, Bolling Field, District of Columbia and consolidated unit re-designated Base Headquarters and 14th Air Base Squadron on September 1, 1936.^[3] Subsequent history/lineage undetermined.

101st Aero Squadron	August 22, 1917	AEF: January 1, 1918 – April 5, 1919 Service Squadron Demobilized: April 14, 1919
101st Aero Squadron	Constituted in the National Guard in 1921 as the 101st Squadron (Observation), and allotted to the state of Massachusetts; Federally recognized on November 18, 1921 at Boston. Stationed at Boston Airport; Consolidated on October 20, 1936 with the 101st Aero Squadron Currently MA ANG 101st Intelligence Squadron^[3]^[6]^[11]

102d Aero Squadron	August 23, 1917	AEF: December 9, 1917 – April 19, 1919 Service Squadron Demobilized: May 1, 1919 ^[10]
102d Aero Squadron	Constituted in the National Guard on December 30, 1920 as the 102nd Squadron (Observation), and allotted to the state of New York; Organized on November 17, 1921 from the Observation Squadron, New York National Guard (organized on March 22, 1921 at Hempstead, Long Island, NY, with personnel from K Company, 14th Infantry, New York National Guard). Concurrently Federally recognized at Hempstead; Consolidated on October 20, 1936 with the 102d Aero Squadron Currently NY ANG 102d Rescue Squadron^[3]^[6]^[11]

103d Aero Squadron	August 31, 1917	Former French Lafayette Escadrille and Lafayette Flying Corps (Escadrille N.124) AEF: December 23, 1917 – March 4, 1918 Pursuit Squadron Combat with 3d Pursuit Group Demobilized: August 18, 1919
103d Aero Squadron	Constituted in the Army Air Service as the 94th Squadron (Pursuit) on March 14, 1921; Re-constituted and consolidated with the 103d Aero Squadron, April 8, 1924; consolidated unit designated 94th Pursuit Squadron Currently: 94th Fighter Squadron, Langley AFB, Virginia^[3]^[12]^[13]

104th Aero Squadron	August 25, 1917	AEF: December 7, 1917 – April 28, 1919 Corps Observation Squadron Combat with V Corps Observation Group
104th Aero Squadron	Re-constituted in the Army Air Service as the 13th Squadron (Attack) on March 14, 1921; Consolidated with 13th Aero Squadron, October 16, 1936 Currently: 13th Bomb Squadron, Whiteman AFB, Missouri^[3]^[14]^[15]

105th Aero Squadron	August 27, 1917	AEF: December 8, 1917 – April 27, 1919 Service Squadron Demobilized: May 8, 1919^[15]
105th Aero Squadron	Constituted in the National Guard in 1921 as the 136th Squadron (Observation) and allotted to the state of Tennessee; Originally organized in the fall of 1920, the squadron was Federally recognized on December 4, 1921 at Blackwood Field, Nashville, TN. Currently TN ANG 105th Airlift Squadron^[6]^[11]

106th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron B, Barron Field, Texas, July 1918 Demobilized: November 1918 ^[6]

107th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron A, Carlstrom Field, Florida, July 1918 Demobilized: November 1918 ^[6]

108th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron B, Carlstrom Field, Florida, July 1918 Demobilized: November 1918 ^[6]

109th Aero Squadron	April 1918	Transferred from Carlstrom Field Instructional flying squadron Re-designated:Squadron B, Dorr Field, Florida, July 1918 Demobilized: November 1918 ^[6]

110th Aero Squadron	May 1918	Instructional flying squadron Re-designated:Squadron C, Dorr Field, Florida, July 1918 Demobilized: November 1918 ^[6]
110th Aero Squadron	Constituted in the National Guard in 1921 as the 110th Squadron (Observation) and allotted to the state of Missouri; Organized and Federally recognized on June 23, 1923 at Anglum Field, St. Louis, MO. 1st Lt. Charles Lindburgh was a member of the squadron 1925–27. Currently MO ANG 110th Bomb Squadron^[6]^[11]

111th Aero Squadron	May 1918	Transferred from Dorr Field, Florida Instructional flying squadron Re-designated: Squadron C, Carlstrom Field, Florida, July 1918 Demobilized: November 1918 ^[6]
111th Aero Squadron	Constituted in the National Guard in 1921 as the 111th Squadron (Observation) and allotted to the state of Texas; Organized in April 1923 and Federally recognized on June 29, 1923 at Ellington Field, Houston, TX. Currently TX ANG 111th Reconnaissance Squadron^[6]^[11]

112th Aero Squadron	May 1918	Instructional flying squadron Re-designated:Squadron B, Chanute Field, Illinois, July 1918 Demobilized: November 1918 ^[6]
112th Aero Squadron	Constituted in the National Guard in 1921 as the 112th Squadron (Observation) and allotted to the state of Ohio; Organized and Federally recognized on June 20, 1927 at Cleveland Airport, Cleveland, OH Currently OH ANG 112th Fighter Squadron^[6]^[11]

112th Aero Squadron (II)	December 1918	Service Squadron, Aviation General Supply Depot Americus, Georgia Demobilized: December 1919^[6]
112th Aero Squadron (II)	Depot was established in March 1918 as a general supply depot. The depot was located adjacent to Souther Field. It supplied materiel to aviation fields and in particular to the Air Service training fields: Park Field, TN, Taylor Field, AL, Payne Field, MS, Carlstrom Field, and Dorr Field, FL.^[16] The 112th and 287th Aero Squadrons were consolidated into "Aviation Supply Depot Detachment" January 1, 1919.^[6]

113th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron C, Ellington Field, Texas, July 1918 Demobilized: November 1918^[6]
113th Aero Squadron	Constituted in the National Guard in 1921 as the 113th Squadron (Observation) and allotted to the state of Indiana; Organized and Federally recognized on June 20, 1927 at Cleveland Airport, Cleveland, OH Currently IN ANG 113th Air Support Operations Squadron^[6]^[11]

114th Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron A, Scott Field, Illinois, July 1918 Demobilized: November 1918 ^[6]

115th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron B, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

116th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron B, Souther Field, Georgia, July 1918 Demobilized: November 1918 ^[6]

117th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron C, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

118th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Brooks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

119th Aero Squadron	June 5, 1917	Formed as 5th Aviation School Squadron Detachment No, 11, Air Service, Aircraft Production Langley Field, Virginia Demobilized: May 29, 1919
119th Aero Squadron	Constituted in the National Guard in 1921 as the 119th Squadron (Observation) and allotted to the state of New Jersey; Organized and Federally recognized on January 30, 1930 at Newark Airport, Newark, NJ, Currently NJ ANG 119th Fighter Squadron^[6]^[11]

120th Aero Squadron	August 28, 1917	AEF: March 9, 1918 – 7 May 1919 1919 Service Squadron Demobilized: May 17, 1919^[15]
120th Aero Squadron	Constituted in the National Guard in 1921 as the 120th Squadron (Observation) and allotted to the state of Colorado; Organized and Federally recognized on January 27, 1923 at Denver Municipal Airport, Denver, CO, with Flight A located at Denver and Flight B at Pueblo Currently CO ANG 120th Fighter Squadron^[6]^[11]

121st Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron B, Love Field, Texas, July 1918 Demobilized: November 1918 ^[6]

123d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron B, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 ^[6]

124th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 ^[6]

125th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 ^[6]

128th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron A, Taylor Field, Alabama, July 1918 Demobilized: November 1918 ^[6]

129th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Taylor Field, Alabama, July 1918 Demobilized: November 1918 ^[6]

131st Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron B, Taylor Field, Alabama, July 1918 Demobilized: November 1918 ^[6]

132d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]

133d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]

134th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Brooks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

135th Aero Squadron	August 1, 1917	AEF: December 31, 1917 – May 7, 1919 Corps Observation Squadron Combat with IV Corps Observation Group
135th Aero Squadron	Returned to the United States in June 1919 and Stationed at Post Field, OK; Constituted in the Army Air Service as the 22d Squadron (Observation) on March 14, 1921 Currently: 22d Intelligence Squadron, Fort George G. Meade, Maryland^[4]^[15]

136th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Love Field, Texas, July 1918 Demobilized: November 1918 ^[6]

137th Aero Squadron	September 9, 1917	AEF: March 18, 1918 – March 1919 Service support squadron Trained in England entire period Demobilized: March 1919^[6]^[15]

138th Aero Squadron	September 28, 1917	AEF: March 18, 1918 – August 1919 Pursuit Squadron Assigned to 5th Pursuit Group (Did not see combat)Demobilized August 30, 1919 ^[6]^[15]
138th Aero Squadron
139th Aero Squadron	September 21, 1917	AEF: March 5, 1918 – June 15, 1919 Pursuit Squadron Combat with 2d Pursuit Group Demobilized: June 17, 1919^[6]^[15]
139th Aero Squadron
141st Aero Squadron	October 8, 1917	AEF: January 9, 1918 – July 1919 Pursuit Squadron Combat with 4th Pursuit Group Demobilized July 19, 1919
141st Aero Squadron	Constituted in the Army Air Corps as the 341st Fighter Squadron on September 24, 1942; Inactivated on May 10, 1946 Constituted in the National Guard on May 24, 1946 as the 141st Fighter Squadron, and allotted to the state of New Jersey; 141st Aero Squadron (Pursuit), was reconstituted and allotted to the State of New Jersey and consolidated with the 141st Tactical Fighter Squadron, September 8, 1973 Currently: NJ ANG 141st Air Refueling Squadron^[6]^[6]^[11]^[11]

142d Aero Squadron	October 4, 1917	AEF: March 4, 1918 – March 1919 Trained as Observation Squadron in England, never entered combat Demobilized: April 1919^[6]^[15]

144th Aero Squadron	October 1917	Post Exchange service squadron Kelly Field, Texas. Demobilized: September 1919 ^[6]^[9]

145th Aero Squadron	October 1917	Aircraft repair squadron Kelly Field, Texas. Demobilized: September 1919 ^[6]^[9]

147th Aero Squadron	November 10, 1917	AEF: March 14, 1918 – March 19, 1919 Pursuit Squadron Combat with 1st Pursuit Group
147th Aero Squadron	Returned to the United States in June 1919 and Stationed at Selfridge Field, MI Constituted in the Army Air Service as the 17th Squadron (Pursuit) on March 14, 1921 Currently: 17th Weapons Squadron, Nellis AFB, Nevada^[6]^[17]

148th Aero Squadron	November 11, 1917	AEF: March 5, 1918 – March 22, 1919 Pursuit Squadron (Primarily assigned to Royal Air Force) Demobilized: March 24, 1919 ^[6]^[18]
148th Aero Squadron
149th Aero Squadron	December 7, 1917	AEF: March 5, 1918 – March 1919 Instructional flying squadron (Pursuit) 3d Air Instructional Center, Issoudun Aerodrome Demobilized: March 1919^[6]^[19]

150th to 199th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
150th Aero Squadron	November 1917	Instructional flying squadron Re-designated:Squadron B, Rich Field, Texas, July 1918 Demobilized: November 1918 ^[6]

151st Aero Squadron	December 8, 1917	AEF: March 5, 1918 – March 1919 Service support squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: March 1919^[6]^[19]

152d Aero Squadron	December 8, 1917	AEF: March 5, 1918 – March 1919 Trained as Pursuit Squadron in England, never entered combat Demobilized: March 1919^[6]^[19]

153d Aero Squadron	December 8, 1917	AEF: February 16, 1918-July1919 Trained as Pursuit Squadron in England, never entered combat Demobilized: July 1919^[6]^[19]

154th Aero Squadron	December 8, 1917	AEF: March 9, 1918 – January 23, 1919 Service Squadron Demobilized: February 1, 1919 ^[19]
154th Aero Squadron	Constituted in the National Guard in 1921 as the 154th Squadron (Observation), assigned to the 320th Observation Group, and allotted to the Seventh Corps Area. Allotted to the Organized Reserve as a Deferred National Guard unit, and re-designated as the 564th Observation Squadron. Withdrawn from the Organized Reserve on September 10, 1925 and allotted to the Arkansas National Guard as the 154th Observation Squadron; Organized and Federally recognized on October 24, 1925 at Little Rock Airport, Little Rock, AR.; Consolidated on October 20, 1936 with the 154th Aero Squadron Currently AR ANG 154th Training Squadron^[4]^[11]

155th Aero Squadron	December 1, 1917	AEF: March 4, 1918 – March 1919 Night Bombardment squadron, did not reach front lines by the time of the armistice. Demobilized: March 1919
155th Aero Squadron	Was the first night bombardment squadron in the AEF. Flew Dayton-Wright DH-4s from 1st Air Depot after the armistice looking for crashed aircraft for recovery.^[6]^[19]

156th Aero Squadron	December 10, 1917	AEF: March 18, 1918 – November 25, 1918 Arrived New York City, NY on December 2, 1918 and was mustered out at Air Service Depot, Garden City, Long Island, N.Y.
156th Aero Squadron	Quarantined in U.S. for measles, mumps, and scarlet fever which delayed departure for AEF. It also probably prevented the squadron from seeing service in France before armistice as their departure was scheduled four days later. Squadron was proud of helping RAF run the Airdrome at TADCASTER (Bramham Moor), Yorkshire during Spanish Influenza epidemics.^[20]

157th Aero Squadron	December 10, 1917	AEF: March 5, 1918 – December 1918 Service support squadron II Corps Aeronautical School Chatillion-sur-Seine Aerodrome Demobilized: December 1918^[6]^[19]

158th Aero Squadron	December 18, 1917	AEF: September 9, 1918 – May 1919 Trained as Pursuit Squadron in England, never entered combat Demobilized: June 1919
158th Aero Squadron	Squadron was torpedoed on SS Tuscania, February 5, 1918 during overseas transport. Reformed in England but never reached combat.^[6]^[19]

159th Aero Squadron	December 10, 1917	AEF: November 2, 1918 – March 1919 Trained as Day Bombardment Squadron in England, never entered combat Demobilized: March 1919
159th Aero Squadron	Squadron was torpedoed on SS Tuscania, February 5, 1918 during overseas transport. Reformed in England but never reached combat.^[6]^[19]

160th Aero Squadron	December 1917	Transferred from Kelly Field, Texas Instructional flying squadron Re-designated:Squadron C, Park Field, Tennessee, July 1918 Demobilized: November 1918 ^[6]

161st Aero Squadron	December 12, 1917	AEF: March 4, 1918 – May 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 5th Air Depot Vinets Aerodrome Demobilized: May 1919^[6]^[8]^[19]

162d Aero Squadron	December 17, 1917	AEF: March 5, 1918 – February 1919 Trained as Pursuit Squadron in England, never entered combat Demobilized: February 1919^[6]^[19]

163d Aero Squadron	December 18, 1917	AEF: March 6, 1918 – June 1919 Day Bombardment Squadron Combat with 2d Day Bombardment Group Demobilized: June 13, 1919^[6]^[19]

164th Aero Squadron	November 1917	Instructional flying squadron Re-designated:Squadron A, Call Field, Texas, July 1918 Demobilized: November 1918 ^[6]

165th Aero Squadron	November 26, 1917	AEF: March 5, 1918 – June 1919 Service support squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: June 1918^[6]^[19]

166th Aero Squadron	December 18, 1917	AEF: March 19, 1919 – June 17, 1919 Day Bombardment Squadron Combat with 1st Day Bombardment Group
166th Aero Squadron	Returned to the United States on June 17, 1919 and stationed at Mitchel Field, NY.; Transferred on September 26, 1919 to Kelly Field, TX Constituted in the Army Air Service as the 49th Squadron (Bombardment) on March 14, 1921 Currently: 49th Test and Evaluation Squadron, Barksdale AFB, Louisiana^[19]^[21]

168th Aero Squadron	December 12, 1917	AEF: February 16, 1918 – July 15, 1919 Corps Observation Squadron Combat with IV Corps Bombardment Group Demobilized July 22, 1919^[6]^[19]

169th Aero Squadron	December 15, 1917	AEF: March 4, 1918 – May 1919 Trained as Observation Squadron in England, never entered combat Demobilized: May 1919^[6]^[19]

170th Aero Squadron	December 18, 1917	AEF: March 18, 1918 – May 1919 Trained as Service support squadron in England Demobilized: May 1919^[6]^[19]

171st Aero Squadron	November 29, 1917	AEF: March 4, 1918 – June 1919 Trained as Service support squadron in England Demobilized: July 1919^[6]^[19]

172d Aero Squadron	December 10, 1917	AEF: March 4, 1918 – May 1919 Trained as Observation Squadron in England, never entered combat Demobilized: May 1919^[6]^[19]

173d Aero Squadron	December 19, 1917	AEF: July 9, 1917 – March 1919 Service support squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: March 1919^[6]^[19]

174th Aero Squadron	December 19, 1917	AEF: March 6, 1918 – April 1919 Trained as Observation Squadron in England, never entered combat Demobilized: April 1919^[6]^[19]

175th Aero Squadron	April 1918	Transferred from Ellington Field, Texas Instructional flying squadron Re-designated:Squadron A, Payne Field, Mississippi, July 1918 Demobilized: November 1918 ^[6]

176th Aero Squadron	December 19, 1917	AEF: March 4, 1918 – March 1919 Trained as Service support squadron in England Demobilized: March 1919^[6]^[19]

178th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron D, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

179th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron E, Brooks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

180th Aero Squadron	December 1917	Instructional flying squadron Re-designated:Squadron E, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

181st Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron E, Eberts Field, Arkansas, July 1918 Demobilized: November 1918 ^[6]

182d Aero Squadron	November 22, 1917	AEF: May 31, 1918 – March 1919 Trained as Service support squadron in England Demobilized: March 1919^[6]^[19]

183d Aero Squadron	December 1917	AEF: May 1918 – September 1919 Re-designated: 1st Air Park V Corps Observation Group Aircraft/Vehicle maintenance and supply unit Demobilized: September 1919^[6]^[2]

184th Aero Squadron	December 2, 1917	AEF: July 7, 1918 – March 1919 Trained as Service support squadron in England Demobilized: March 1919^[6]^[19]

185th Aero Squadron	November 11, 1917	AEF: February 16, 1918 – May 15, 1919 Night Pursuit Squadron Combat with 1st Pursuit Group Demobilized: June 30, 1919 ^[6]^[19]

186th Aero Squadron	November 16, 1917	AEF: February 16, 1918 – June 1919 Army Observation Squadron Combat with First Army Observation Group Demobilized: June 30, 1919 ^[6]^[19]

188th Aero Squadron	November 9, 1917	AEF: March 18, 1918 – December 1918 Trained as Service support squadron in England Demobilized: December 1918^[6]^[19]

192d Aero Squadron	December 1917	Instructional flying squadron Re-designated:Squadron B, Call Field, Texas, July 1918 Demobilized: November 1918 ^[6]

193d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Taylor Field, Alabama, July 1918 Demobilized: November 1918 ^[6]

195th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron F, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918 ^[6]

196th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron G, Gerstner Field, Louisiana, July 1918 Demobilized: November 1918 ^[6]

197th Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron D, Love Field, Texas, July 1918 Demobilized: November 1918 ^[6]

198th Aero Squadron	December 1917	Instructional flying squadron Re-designated:Squadron C, Call Field, Texas, July 1918 Demobilized: November 1918 ^[6]

199th Aero Squadron	November 27, 1917	AEF: March 4, 1918 – May 1919 Trained as Service support squadron in England Demobilized: June 1919^[19]

200th to 249th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
200th Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron A, Mather Field, California, July 1918 Demobilized: November 1918 ^[6]

201st Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron B, Mather Field, California, July 1918 Demobilized: November 1918 ^[6]

202d Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron E, Post Field, Oklahoma, July 1918 Demobilized: November 1918 ^[6]

203d Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron C, Chanute Field, Illinois, July 1918 Demobilized: November 1918 ^[6]

204th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron E, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]

205th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Carlstrom Field, Florida, July 1918 Demobilized: November 1918 ^[6]

206th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Hicks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

207th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron C, Barron Field, Texas, July 1918 Demobilized: November 1918 ^[6]

208th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron A, Benbrook Field, Texas, July 1918 Demobilized: November 1918 ^[6]

209th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron B, Benbrook Field, Texas, July 1918 Demobilized: November 1918 ^[6]

212th Aero Squadron	June 1918	Flying School service support squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]

213th Aero Squadron	December 1, 1917	AEF: February 1918-11 June 1919 Pursuit Squadron Combat with 3d Pursuit Group Demobilized June 30, 1919^[6]^[22]

214th Aero Squadron	December 1917	Instructional flying squadron Re-designated:Squadron D, Park Field, Tennessee, July 1918 Demobilized: November 1918 ^[6]

215th Aero Squadron	June 1918	Transferred from Rockwell Field, California Instructional flying squadron Re-designated:Squadron B, March Field, California, July 1918 Demobilized: November 1918 ^[6]

218th Aero Squadron	January 1918	AEF: June 1918 – June 1919 Re-designated: 4d Air Park 1st Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: July 1919^[6]

221st Aero Squadron	December 16, 1917	Instructional flying squadron Re-designated:Squadron B, Scott Field, Illinois, July 1918 Demobilized: November 1918 ^[6]

222d Aero Squadron	December 16, 1917	AEF: March 18, 1918 – June 1919 In training in England entire period Demobilized: July 1919^[6]^[23]

223d Aero Squadron	January 10, 1918	AEF: August 29, 1918 – June 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919^[6]^[8]^[23]

227th Aero Squadron	January 12, 1918	AEF: July 13, 1918 – June 1919 Service support squadron 7th Aviation Instruction Center Clermont-Ferrand Aerodrome Demobilzed: July 1919^[6]^[23]

229th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Benbrook Field, Texas, July 1918 Demobilized: November 1918 ^[6]

232d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

233d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron E, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

234th Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron F, Brooks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

235th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron F, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

236th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Souther Field, Georgia, July 1918 Demobilized: November 1918 ^[6]

237th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Souther Field, Georgia, July 1918 Demobilized: November 1918 ^[6]

238th Aero Squadron	April 1918	Transferred from Kelly Field, Texas Instructional flying squadron Re-designated:Squadron B, Payne Field, Mississippi, July 1918 Demobilized: November 1918 ^[6]

239th Aero Squadron	April 1918	Transferred from Kelly Field, Texas Instructional flying squadron Re-designated:Squadron C, Payne Field, Mississippi, July 1918 Demobilized: November 1918 ^[6]

240th Aero Squadron	May 1918	Instructional flying squadron Re-designated:Squadron D, Dorr Field, Florida, July 1918 Demobilized: November 1918 ^[6]

241st Aero Squadron	May 1918	Instructional flying squadron Re-designated:Squadron E, Dorr Field, Florida, July 1918 Demobilized: November 1918 ^[6]

242d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron C, Scott Field, Illinois, July 1918 Demobilized: November 1918 ^[6]

243d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron G, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

244th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron H, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

245th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron I, Kelly Field, Texas, July 1918 Demobilized: November 1918 ^[6]

246th Aero Squadron	July 1917	Instructional flying squadron Re-designated:Squadron L, Wilbur Wright Field, Ohio, July 1918 Demobilized: November 1918 ^[6]

247th Aero Squadron	February 1, 1918	AEF: March 18, 1918 – March 1919 In training in England entire period Demobilized: March 1919.^[6]^[23]

248th Aero Squadron	February 1, 1918	AEF: March 18, 1918 – March 1919 In training in England entire period Demobilized: April 1919 ^[6]^[23]

249th Aero Squadron	November 1917	Instructional flying squadron Re-designated:Squadron C, Rich Field, Texas, July 1918 Demobilized: November 1918 ^[6]

250th to 299th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
250th Aero Squadron	November 1917	Instructional flying squadron Re-designated:Squadron F, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

251st Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron F, Post Field, Oklahoma, July 1918 Demobilized: November 1918 ^[6]

252d Aero Squadron	April 1918	Transferred from Ellington Field, Texas Instructional flying squadron Re-designated:Squadron D, Payne Field, Mississippi, July 1918i Demobilized: November 1918 ^[6]

255th Aero Squadron	February 9, 1918^[24]	AEF: July 1918 – June 1919 Re-designated: 3d Air Park V Corps Balloon Group Aircraft/Vehicle maintenance and supply unit Demobilized: June 1919^[6]^[2]
255th Aero Squadron	Constituted in the Army Air Service as Air Park No. 3, and assigned to the 2d Wing (Provisional), Langley Field, Virginia on August 30, 1921; Re-designated as the 58th Service Squadron on January 16, 1923; Consolidated on April 8, 1924 with Air Park No. 3; Consolidated on September 1, 1936 with HHS, 8th Pursuit Group.^[3] Subsequent lineage and history undetermined.

257th Aero Squadron	February 14, 1918	AEF: June 12, 1918 – April 1919 Instructional flying squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: April 1919^[6]

258th Aero Squadron	January 1, 1918	AEF: June 12, 1918 – August 1, 1919 Corps Observation Squadron Demobilized August 1, 1919 ^[6]

259th Aero Squadron	February 14, 1918	AEF: July 31, 1918 – December 1918 In training in England entire period. Demobilized: December 1918^[6]

260th Aero Squadron	February 14, 1918	AEF: July 31, 1918 – December 1918 In training in England entire period. Demobilized: December 1918^[6]

261st Aero Squadron	February 7, 1918	AEF: July 31, 1918 – December 1918 In training in England entire period. Demobilized: December 1918^[6]

264th Aero Squadron	January 13, 1918	AEF: March 6, 1918 – December 1918 In training in England entire period. Demobilized: December 1918 ^[6]

266th Aero Squadron	January 6, 1918	AEF: August 27, 1918 – December 1918 Service support squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: December 1918^[6]

267th Aero Squadron	January 26, 1918	AEF: August 5, 1918– December 1918 In training in England entire period. Demobilized: December 1918 ^[6]

269th Aero Squadron	January 26, 1918	AEF: August 5, 1918 – July 1919 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919^[6]^[8]

270th Aero Squadron	February 8, 1918	AEF: August 26, 1918 – July 1918 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919^[6]^[8]

272d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron E, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

273d Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron D, Barron Field, Texas, July 1918 Demobilized: November 1918 ^[6]

274th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron D, Benbrook Field, Texas, July 1918 Demobilized: November 1918 ^[6]

275th Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron E, Hicks Field, Texas, July 1918 Demobilized: November 1918 ^[6]

278th Aero Squadron	February 14, 1918	AEF: August 27, 1918 – June 13, 1919 Corps Observation Squadron Demobilized June 13, 1919 ^[6]

279th Aero Squadron	February 1918	AEF: September 1918 – March 1919 Re-designated: 5th Air Park 2d Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: March 1919^[6]

281st Aero Squadron	February 8, 1918	AEF: August 26, 1918 – July 1918 Advance Section, Services of Supply (SOS) Air Park Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919^[6]^[8]

283d Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron C, Mather Field, California, July 1918 Demobilized: November 1918 ^[6]

284th Aero Squadron	February 1918	Instructional flying squadron Re-designated:Squadron E, Carlstrom Field, Florida, July 1918 Demobilized: November 1918 ^[6]

285th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron H, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

286th Aero Squadron	March 1918	Instructional flying squadron Re-designated:Squadron T, Ellington Field, Texas, July 1918 Demobilized: November 1918 ^[6]

287th Aero Squadron	April 1918	Service Squadron at Wilbur Wright Field, Ohio, May 1918. Transferred to Chanute Field, Illinois, June 1918 and re-designated "Squadron D", July 1918. Re-designated 287th Aero Squadron and transferred to Aviation General Supply Depot Americus, Georgia, December 1918^[6]
287th Aero Squadron	Depot was established in March 1918 as a general supply depot.^[16] The 112th and 287th Aero Squadrons were consolidated into "Aviation Supply Depot Detachment" January 1, 1919.^[6]

288th Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron E, Chanute Field, Illinois, July 1918 Demobilized: November 1918 ^[6]

289th Aero Squadron	June 1918	Transferred from Rockwell Field, California Instructional flying squadron Re-designated:Squadron C, March Field, California, July 1918 Demobilized: November 1918 ^[6]

290th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron F, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]

291st Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron G, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]

292d Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron H, Rockwell Field, California, July 1918 Demobilized: November 1918 ^[6]

293d Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron D, March Field, California, July 1918 Demobilized: November 1918 ^[6]

294th Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron D, Mather Field, California, July 1918 Demobilized: November 1918 ^[6]

300th to 324th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
302d Aero Squadron	June 1918	Organized as the 302d Aero Squadron (Service) at Carlstrom Field, Florida Re-designated, Squadron "F", Carlstrom Field Demobilized: December 1918^[6]
302d Aero Squadron	Constituted in the Organized Reserve (New York) as the 302d Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 302d Aero Squadron Disbanded on May 31, 1942^[3]

303d Aero Squadron	May 1918	Organized as the 303d Aero Squadron (Provisional) at Ellington Field, Texas Re-designated 303d Aero Squadron (Service), June 1918; Squadron "K", Ellington Field, July 1918 Demobilized: December 1918^[6]
303d Aero Squadron	Constituted in the Organized Reserve (New Jersey) as the 303th Observation Squadron on June 24, 1921; Col. Charles A. Lindbergh, Air Corps Reserve, was attached to the squadron in June 1932 for summer training at Mitchel Field, New York; Consolidated on November 24, 1936 with the 303d Aero Squadron Inactivated in August 1937; Disbanded on May 31, 1942^[3]

306th Aero Squadron	July 1918	Organized as the 306th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
306th Aero Squadron	Constituted in the Organized Reserve (Tennessee) as the 306th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 306th Aero Squadron Inactivated on July 23, 1939; Disbanded on May 31, 1942^[3]

307th Aero Squadron	July 1918	Organized as the 307th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
307th Aero Squadron	Constituted in the Organized Reserve (Georgia) as the 307th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 307th Aero Squadron Inactivated on August 27, 1939; Disbanded on May 31, 1942^[3]

308th Aero Squadron	July 1918	Organized as the 308th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
308th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 308th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated on November 24, 1936 with the 308th Aero Squadron Disbanded on May 31, 1942^[3]

309th Aero Squadron	July 7, 1919	AEF: August 11, 1918– December 1918 Service support squadron In training in England entire time Demobilized: December 1918^[6]^[23]
309th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 309th Observation Squadron on October 15, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Squadron commander in the late 1920s was World War I ace Major H. Weir Cook; Consolidated on November 24, 1936 with the 309th Aero Squadron Disbanded on May 31, 1942^[3]

310th Aero Squadron	July 1918	Organized as the 310th Aero Squadron (Service) at Camp Greene, North Carolina AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
310th Aero Squadron	Constituted in the Organized Reserve (Michigan) as the 310th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 310th Aero Squadron Disbanded on May 31, 1942^[3]

311th Aero Squadron	June 1918	Instructional flying squadron Re-designated:Squadron E, March Field, California, July 1918 Demobilized: November 1918 ^[6]
311th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 311th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 311th Aero Squadron Disbanded on May 31, 1942^[3]

312th Aero Squadron	July 1918	Organized as the 312th Aero Squadron (Service) at Bolling Field, District of Columbia Demobilized: September 1919^[6]
312th Aero Squadron	Constituted in the Organized Reserve (Alabama) as the 312th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 312th Aero Squadron Disbanded on May 31, 1942^[3]

313th Aero Squadron	June 1918	Organized as the 313th Aero Squadron (Service) at Kelly Field, Texas Demobilized: August 1919^[6]
313th Aero Squadron	Constituted in the Organized Reserve (Iowa) as the 313th Observation Squadron on June 24, 1921; 1st Lt. Charles Lindburgh was a member of the squadron from June to November 1925; Consolidated on November 24, 1936 with the 313th Aero Squadron Inactivated on October 2, 1939; Disbanded on May 31, 1942^[3]

314th Aero Squadron	July 1918	Organized as the 314th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
314th Aero Squadron	Constituted in the Organized Reserve (Nebraska) as the 314th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. The squadron's equipment was stationed at Offut Field, Nebraska; Consolidated on November 24, 1936 with the 314th Aero Squadron Inactivated on October 2, 1939; Disbanded on May 31, 1942^[3]

315th Aero Squadron	July 1918	Organized as the 315th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
315th Aero Squadron	Constituted in the Organized Reserve (Texas) as the 315th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated on November 24, 1936 with the 315th Aero Squadron Disbanded on May 31, 1942^[3]

316th Aero Squadron	July 1918	Organized as the 316th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
316th Aero Squadron	Constituted in the Organized Reserve (California) as the 316th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. In January 1922 the squadron received the use of a hangar at Crissy Field and was issued five aircraft for training purposes making it the first aircraft equipped reserve squadron in the United States; Consolidated on November 24, 1936 with the 316th Aero Squadron Inactivated on September 1, 1940; Disbanded on May 31, 1942^[3]

319th Aero Squadron	July 1918	Organized as the 319th Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
319th Aero Squadron	Constituted in the Organized Reserve (Massachusetts) as the 319th Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Stationed initially at the Framingham Airdrome. The squadron's aircraft were transferred to the Boston Airport after its opening in 1923; Consolidated on November 18, 1936 with the 319th Aero Squadron Disbanded on May 31, 1942^[3]

320th Aero Squadron	July 1918	Organized as the 320th Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
320th Aero Squadron	Constituted in the Organized Reserve (Oklahoma) as the 320th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 320th Aero Squadron Disbanded on May 31, 1942^[3]

321st Aero Squadron	July 1918	Organized as the 321st Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
321st Aero Squadron	Constituted in the Organized Reserve (Oregon) as the 321st Observation Squadron on June 24, 1921; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. The squadron's equipment was stationed just across the Columbia River at Pearson Field, Vancouver Barracks, WA. 1st Lt. Oakley Kelly, Air Service Reserve, a pilot who made the first non-stop transcontinental flight in 1923, was the unit instructor 1924–28; Consolidated on August 12, 1933 with the 321st Aero Squadron Inactivated on January 30, 1942; Disbanded on May 31, 1942^[3]

322d Aero Squadron	February 1918	Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: February 1919 ^[6]^[9]
322d Aero Squadron	Constituted in the Organized Reserve (New Hampshire) as the 322d Observation Squadron on October 15, 1921; Consolidated on November 23, 1936 with the 322d Aero Squadron Disbanded on May 31, 1942^[3]

323d Aero Squadron	December 1917	Organized as the 323d Aero Squadron (Service) at Kelly Field, Texas Demobilized: August 1919^[6]
323d Aero Squadron	Constituted in the Organized Reserve (New York) as the 323d Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 323d Aero Squadron Disbanded on May 31, 1942^[3]

324th Aero Squadron	February 1918	Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919^[6]^[9]
324th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 324th Observation Squadron on October 15, 1921; Consolidated on November 23, 1936 with the 324th Aero Squadron Inactivated on October 23, 1939 by relief of personnel; Disbanded on May 31, 1942^[3]

325th to 349th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
325th Aero Squadron	December 1917	Organized as the 325th Aero Squadron (Service) at Kelly Field, Texas Re-designated 869th Aero Squadron (Repair), April 1918 Demobilized: December 1918^[6]
325th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 325th Observation Squadron on June 24, 1921; Consolidated on November 19, 1931 with the 325th Aero Squadron Disbanded on May 31, 1942^[3]

327th Aero Squadron	November 1917	Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]
327th Aero Squadron	Constituted in the Organized Reserve (Arkansas) as the 327th Observation Squadron on October 15, 1921; Consolidated on November 23, 1936 with the 327th Aero Squadron Inactivated on October 2, 1939 by relief of personnel; Disbanded on May 31, 1942^[3]

328th Aero Squadron	November 1917	Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]
328th Aero Squadron	Constituted in the Organized Reserve (Colorado) as the 328th Observation Squadron on October 15, 1921; Consolidated on November 21, 1936 with the 328th Aero Squadron Disbanded on May 31, 1942^[3]

329th Aero Squadron	July 1918	Organized as the 329th Aero Squadron (Service) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
329th Aero Squadron	Constituted in the Organized Reserve (Utah) as the 329th Observation Squadron on June 24, 1921; Consolidated on November 24, 1936 with the 329th Aero Squadron Disbanded on May 31, 1942^[3]

332d Aero Squadron	December 1917	Organized as the 332d Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 670th Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1918^[6]
332d Aero Squadron	Constituted in the Organized Reserve (New York) as Air Park No. 332 on October 15, 1921; Re-designated 332d Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 332d Aero Squadron Disbanded on May 31, 1942^[3]

333d Aero Squadron	December 1917	Organized as the 333d Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 671st Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1918^[6]
333d Aero Squadron	Constituted in the Organized Reserve (New York) as Air Park No. 333 on October 15, 1921; Re-designated 333d Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 333d Aero Squadron Disbanded on May 31, 1942^[3]

335th Aero Squadron	December 1917	Organized as the 335th Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 673d Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1918^[6]
335th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as Air Park No. 335 on October 15, 1921; Re-designated 335th Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 335th Aero Squadron Inactivated about September 1939; Disbanded on May 31, 1942^[3]

336th Aero Squadron	December 1917	Organized as the 336th Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 674th Aero Squadron (Supply), February 1918; assigned to Camp Morrison, Virginia Demobilized: December 1919^[6]
336th Aero Squadron	Constituted in the Organized Reserve (Ohio) as Air Park No. 336 on October 15, 1921; Re-designated 336th Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 336th Aero Squadron Inactivated by March 1930; Disbanded on May 31, 1942^[3]

337th Aero Squadron	December 1917	Organized as the 337th Aero Squadron (Supply) at Kelly Field, Texas Re-designated: 675th Aero Squadron (Supply), February 1918; assigned to Aviation General Supply Depot, San Antonio, Texas Demobilized: April 1919^[6]
337th Aero Squadron	Constituted in the Organized Reserve (Illinois) as Air Park No. 337 on October 15, 1921; Re-designated 337th Service Squadron, July 2, 1923; Consolidated on November 21, 1936 with the 339th Aero Squadron Disbanded on May 31, 1942^[3]

338th Aero Squadron	July 1918	Organized as the 338th Aero Squadron (Supply) at Camp Morrison, Virginia AEF: July 1918 – December 1918 Demobilized: December 1918^[6]
338th Aero Squadron	Constituted in the Organized Reserve (Illinois) as Air Park No. 339 on October 15, 1921; Re-designated 338th Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 339th Aero Squadron Disbanded on May 31, 1942^[3]

341st Aero Squadron	July 7, 1918	AEF: July 30, 1918 – March 1919 Service support squadron Aireal Gunnery School, St. Jean-de-monts Aerodrome Demobilized: April 1919^[6]^[23]
341st Aero Squadron	Constituted in the Organized Reserve (Texas) as Air Park No. 341 on October 15, 1921; Re-designated 341st Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 341st Aero Squadron Inactivated on January 16, 1941; Disbanded on May 31, 1942^[3]

342d Aero Squadron	July 1917	Instructional flying squadron Re-designated:Squadron M (later Q), Wilbur Wright Field, Ohio, July 1918 Demobilized: November 1918 ^[6]
342d Aero Squadron
344th Aero Squadron	September 1918	Organized as the 344th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York Assigned to the Handley Page bomber project Demobilized: December 1918^[6]
344th Aero Squadron	Constituted in the Organized Reserve (Illinois) as Air Park No. 344 on October 15, 1921; Re-designated 344th Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 344th Aero Squadron Disbanded on May 31, 1942^[3]

346th Aero Squadron	September 1918	Organized as the 346th Aero Squadron (Service) at Aviation Concentration Center, Garden City, New York Assigned to the Handley Page bomber project Demobilized: December 1918^[6]
346th Aero Squadron	Constituted in the Organized Reserve (New York) as Air Park No. 346 on October 15, 1921; Re-designated 346th Service Squadron, July 2, 1923; Consolidated on November 24, 1936 with the 346th Aero Squadron Disbanded on May 31, 1942^[3]

349th Aero Squadron	January 1918	Organized as the 367th Aero Squadron (Service) at Kelly Field, Texas AEF:May 1918 – December 1918 Demobilized: January 1919^[6]
349th Aero Squadron	Constituted in the Organized Reserve (Illinois) as Air Park No. 349 on October 15, 1921; Re-designated 349th Service Squadron, Transport Group, October 1, 1933; Consolidated on November 24, 1936 with the 349th Aero Squadron Disbanded on May 31, 1942^[3]

350th to 399th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
350th Aero Squadron	January 12, 1918	AEF: July 30, 1918 – December 1918 Service support squadron In training in England entire time Demobilized: December 1918^[6]^[23]
350th Aero Squadron	Constituted in the Organized Reserve (Oklahoma) as the 350th Service Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 350th Aero Squadron Disbanded on May 31, 1942^[3]

351st Aero Squadron	January 24, 1918	AEF: August 26, 1918 – April 1919 Service support squadron 4th Aerial Artillery Observation School, Camp de Coetquidan Demobilized: April 1919^[6]^[23]
351st Aero Squadron	Constituted in the Organized Reserve (Massachusetts) as the 351st Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 351st Aero Squadron Disbanded on May 31, 1942^[3]

353d Aero Squadron	January 14, 1918	AEF: August 26, 1918– May 1919 Service support squadron 2d Aerial Artillery Observation School, Bordeaux Demobilized: May 1919^[6]^[23]
353d Aero Squadron	Constituted in the Organized Reserve (New York) as the 353d Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 353d Aero Squadron Disbanded on May 31, 1942^[3]

354th Aero Squadron	January 28, 1918	AEF: August 25, 1918 – July 1919 Corps Observation Demobilized: July 30, 1919 ^[6]^[23]

357th Aero Squadron	February 1918	Organized as the 357th Aero Squadron (Service) at Kelly Field, Texas Assigned to Hazelhurst Field, New York, March 1918 – January 1919 Demobilized: January 1919^[6]
357th Aero Squadron	Constituted in the Organized Reserve (Alabama) as the 357th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 357th Aero Squadron Disbanded on May 31, 1942^[3]

358th Aero Squadron	February 1918	Organized as the 358th Aero Squadron (Service) at Kelly Field, Texas Assigned to Roosevelt Field, New York, March 1918 – January 1919 Demobilized: January 1919^[6]
358th Aero Squadron	Constituted in the Organized Reserve (South Carolina) as the 358th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 358th Aero Squadron Disbanded on May 31, 1942^[3]

359th Aero Squadron	February 1918	Organized as the 359th Aero Squadron (Service) at Kelly Field, Texas Assigned to several stations in the United States, March 1918 – January 1919 Demobilized: January 1919^[6]
359th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 359th Observation Squadron on October 15, 1921; Consolidated on November 24, 1936 with the 359th Aero Squadron Disbanded on May 31, 1942^[3]

360th Aero Squadron	January 1918	AEF: June 1918 – December 1918 Re-designated: 2d Air Park 3d Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: December 1918^[6]^[2]
360th Aero Squadron
365th Aero Squadron	January 1918	Organized as the 365th Aero Squadron (Depot) at Central Depot Headquarters, Chicago, Illinois; Re-designated 816th Aero Squadron (Depot), February 1918. Demobilized: August 1918^[6]
365th Aero Squadron	Constituted in the Organized Reserve (Oklahoma) as the 365th Observation Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 365th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942^[3]

366th Aero Squadron	January 1918	Organized as the 366th Aero Squadron (Depot) at Fort Sill, Oklahoma; Re-designated 817th Aero Squadron (Depot), February 1918. Demobilized: August 1918^[6]
366th Aero Squadron	Constituted in the Organized Reserve (Texas) as the 366th Observation Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 366th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942^[3]

367th Aero Squadron	January 1918	Organized as the 367th Aero Squadron (Depot) at Western Depot Headquarters, San Francisco, California; Re-designated 818th Aero Squadron (Depot), February 1918. Demobilized: August 1918^[6]
367th Aero Squadron	Constituted in the Organized Reserve (California) as the 367th Observation Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 367th Aero Squadron; The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft. Inactivated on September 2, 1937; Disbanded on May 31, 1942^[3]

369th Aero Squadron	December 31, 1917	AEF: March 5, 1918 – June 1918 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: June 1919^[6]^[23]
369th Aero Squadron	Constituted in the Organized Reserve (New York) as the 369th Observation Squadron on October 15, 1921; Re-designated 374th Service Squadron, January 25, 1923; Consolidated on November 27, 1936 with November 27, 1936 Disbanded on May 31, 1942^[3]

370th Aero Squadron	January 15, 1918	AEF: March 6, 1918 – June 1919 Aireal Observation Squadron (Training) Second Corps Observation Aeronautical School, Chatillion-sur-Seine Aerodrome Demobilized June 1919 ^[6]^[23]

372d Aero Squadron	January 17, 1918	AEF: March 18, 1918 – May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919^[6]^[23]

373d Aero Squadron	January 19, 1918	AEF: March 18, 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919^[6]^[23]
373d Aero Squadron	Constituted in the Organized Reserve (California) as Air Park No. 373 on October 15, 1921; Re-designated 373d Service Squadron, January 25, 1923; Consolidated on November 27, 1936 with the 373d Aero Squadron Inactivated on March 2, 1937; Disbanded on May 31, 1942^[3]

374th Aero Squadron	December 28, 1917	AEF: March 18, 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919 ^[6]^[23]
374th Aero Squadron	Constituted in the Organized Reserve (California) as Air Park No. 374 on October 15, 1921; Re-designated 374th Service Squadron, January 25, 1923; Consolidated on November 27, 1936 with the 374th Aero Squadron Inactivated on September 1, 1928; Disbanded on May 31, 1942^[3]

375th Aero Squadron	January 20, 1918	AEF: March 18, 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919 ^[6]^[23]

376th Aero Squadron	January 1, 1918	AEF: March 18, 1918– May 1919 Service support squadron 3d Air Instructional Center, Issoudun Aerodrome Demobilized: May 1919 ^[6]^[23]

377th Aero Squadron	January 1918	Organized as the 377th Aero Squadron (Service) at Rich Field, Waco, Texas AEF: March 1918 – December 1918 Demobilized: December 1918^[6]
377th Aero Squadron	Constituted in the Organized Reserve (Indiana) as Air Park No. 305 on October 15, 1921; Re-designated as the 377th Service Squadron on January 25, 1923; Consolidated on November 27, 1936 with the 377th Aero Squadron Inactivated on December 1, 1929; Disbanded on May 31, 1942^[3]

378th Aero Squadron	January 1918	Organized as the 378th Aero Squadron (Service) at Rich Field, Waco, Texas AEF: March 1918 – December 1918 Demobilized: December 1918^[6]
378th Aero Squadron	Constituted in the Organized Reserve (Illinois) as Air Park No. 306 on October 15, 1921; Re-designated as the 378th Service Squadron on January 25, 1923; Consolidated on November 27, 1936 with the 378th Aero Squadron Inactivated by December 7, 1941; Disbanded on May 31, 1942^[3]

379th Aero Squadron	April 1918	Instructional flying squadron Re-designated:Squadron E, Benbrook Field, Texas, July 1918 Demobilized: November 1918 ^[6]
379th Aero Squadron	Constituted in the Organized Reserve (Nebraska) as Air Park No. 307 on October 15, 1921; Re-designated 379th Service Squadron, Attack Group, October 1, 1933; Consolidated on November 28, 1936 with the 379th Aero Squadron Disbanded on May 31, 1942^[3]

380th Aero Squadron	January 1918	Instructional flying squadron Re-designated:Squadron B, Selfridge Field, Michigan, July 1918 Demobilized: November 1918^[6]
380th Aero Squadron	Constituted in the Organized Reserve (Texas) as Air Park No. 308 on October 15, 1921; Re-designated 380th Service Squadron, Observation Group, October 1, 1933; Consolidated on November 28, 1936 with the 380th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942^[3]

400th to 449th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
400th Aero Squadron	May 23, 1917	Formed as 29th Aero Squadron (Prov) AEF: July 28, 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919
400th Aero Squadron	Notable as the first American Air Service Squadron to arrive in France^[6]^[25] Constituted in the Organized Reserve (New York) as the 400th Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 400th Aero Squadron Disbanded on May 31, 1942^[3]

401st Aero Squadron	November 1917	Organized as the 401st Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 15th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
401st Aero Squadron	Constituted in the Organized Reserve (New York) as the 401st Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 401st Aero Squadron Inactivated on September 18, 1930; Disbanded on May 31, 1942 ^[3]

402d Aero Squadron	November 1917	Organized as the 402d Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 16th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
402d Aero Squadron	Constituted in the Organized Reserve (New York) as the 402d Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 402d Aero Squadron Inactivated on December 5, 1929; Disbanded on May 31, 1942 ^[3]

403d Aero Squadron	November 1917	Re-designated 17th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
403d Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) October 15, 1921; Consolidated on November 23, 1936 with 403d Airdrome Company Disbanded May 31, 1942^[3]

404th Aero Squadron	November 1917	Organized as the 405th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 18th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
404th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 404th Pursuit Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 404th Aero Squadron Inactivated by June 1940; Disbanded on May 31, 1942 ^[3]

405th Aero Squadron	November 1917	Organized as the 405th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 19th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
405th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 405th Pursuit Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 405th Aero Squadron Disbanded on May 31, 1942 ^[3]

406th Aero Squadron	November 1917	Organized as the 406th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 20th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
406th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 406th Pursuit Squadron on October 15, 1921; Reorganized and re-designated 406th Attack Squadron on October 1, 1933; Consolidated on November 30, 1936 with the 406th Aero Squadron Inactivated by June 1940; Disbanded on May 31, 1942 ^[3]

407th Aero Squadron	November 1917	Organized as the 407th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 1st Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
407th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 407th Attack Squadron on October 15, 1921; Consolidated on December 5, 1936 with the 407th Aero Squadron Inactivated on July 25, 1929; Disbanded on May 31, 1942 ^[3]

408th Aero Squadron	November 1917	Organized as the 408th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 2d Spruce Squadron, July 1918^[6]Assigned to Spruce Production Division; Demobilized: January 1919^[6]
408th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 408th Attack Squadron on October 15, 1921; Consolidated on December 5, 1936 with the 408th Aero Squadron Disbanded on May 31, 1942 ^[3]

409th Aero Squadron	November 1917	Organized as the 409th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 3d Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
409th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 409th Attack Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 409th Aero Squadron Disbanded on May 31, 1942 ^[3]

410th Aero Squadron	November 1917	Organized as the 412th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 4th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
410th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 410th Attack Squadron on October 15, 1921; Consolidated on November 30, 1936 with the 410th Aero Squadron Inactivated on July 23, 1929; Disbanded on May 31, 1942 ^[3]

411th Aero Squadron	November 1917	Re-designated 5th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
411th Aero Squadron	Constituted in the Organized Reserve (New York) as the 411th Airdrome Company October 15, 1921; Consolidated on November 23, 1936 with 411th Aero Squadron Disbanded May 31, 1942^[3]

412th Aero Squadron	November 1917	Organized as the 412th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 6th Spruce Squadron, Aberdeen, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
412th Aero Squadron	Constituted in the Organized Reserve (Mississippi) as the 412th Pursuit Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 412th Aero Squadron Inactivated on September 19, 1929; Disbanded on May 31, 1942 ^[3]

413th Aero Squadron	December 1917	Organized as 413th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 42d Spruce Squadron and transferred to Aberdeen, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
413th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) October 15, 1921 as the 413th Airdrome Company; Consolidated on November 23, 1936 with 413th Aero Squadron Disbanded May 31, 1942^[3]

414th Aero Squadron	December 1917	Organized as the 414th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 102d Spruce Squadron, Powers, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
414th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 414th Pursuit Squadron on October 15, 1921; Consolidated on November 28, 1936 with the 414th Aero Squadron Inactivated about June 1937; Disbanded on May 31, 1942 ^[3]

415th Aero Squadron	December 1917	Organized as 415th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 32d Spruce Squadron and transferred to Twin, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
415th Aero Squadron	Constituted in the Organized Reserve (Ohio) October 15, 1921 as the 415th Airdrome Company; Consolidated on November 23, 1936 with 415th Aero Squadron Disbanded May 31, 1942^[3]

416th Aero Squadron	December 1917	Organized as 416th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 33d Spruce Squadron and transferred to Stillwater, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
416th Aero Squadron	Constituted in the Organized Reserve (Ohio) October 15, 1921 as the 416th Airdrome Company; Consolidated on November 23, 1936 with 416th Aero Squadron Disbanded May 31, 1942^[3]

417th Aero Squadron	December 1917	Organized as 417th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 34th Spruce Squadron and transferred to Pysht, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
417th Aero Squadron	Constituted in the Organized Reserve (Wisconsin) October 15, 1921 as the 417th Airdrome Company; Consolidated on November 23, 1936 with 417th Aero Squadron Disbanded May 31, 1942^[3]

418th Aero Squadron	January 1918	Organized as 418th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 35th Spruce Squadron and transferred to Arlington, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
418th Aero Squadron	Constituted in the Organized Reserve (Arkansas) October 15, 1921 as the 418th Airdrome Company; Consolidated on November 23, 1936 with 418th Aero Squadron Disbanded May 31, 1942^[3]

419th Aero Squadron	March 1918	Organized as 419th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 43d Spruce Squadron and transferred to Lindburg, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
419th Aero Squadron	Constituted in the Organized Reserve (New York) October 15, 1921 as the 419th Airdrome Company; Consolidated on November 23, 1936 with 419th Aero Squadron Disbanded May 31, 1942^[3]

420th Aero Squadron	January 1918	Organized as 420th Aero Squadron (Construction), Vancouver Barracks, Washington Re-designated 44th Spruce Squadron and transferred to Hoquiam, Washington, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
420th Aero Squadron	Constituted in the Organized Reserve (Kentucky) October 15, 1921 as the 420th Airdrome Company; Consolidated on November 23, 1936 with 420th Aero Squadron Disbanded May 31, 1942^[3]

421st Aero Squadron	January 1918	Organized as the 421st Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 45th Spruce Squadron, Carlisle, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
421st Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 421st Pursuit Squadron on October 15, 1921; Consolidated on December 2, 1936 with the 421st Aero Squadron Disbanded on May 31, 1942 ^[3]

422d Aero Squadron	January 1918	Organized as the 422d Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 36th Spruce Squadron, Blyn, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
422d Aero Squadron	Constituted in the Organized Reserve (Wisconsin) as the 422d Pursuit Squadron on October 15, 1921; Consolidated on December 2, 1936 with the 422d Aero Squadron Disbanded on May 31, 1942 ^[3]

423d Aero Squadron	January 1918	Organized as the 423d Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 46th Spruce Squadron, Bay City, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
423d Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 423d Pursuit Squadron on October 15, 1921; Reorganized and re-designated 423d Attack Squadron on October 1, 1933; Consolidated on December 2, 1936 with the 423d Aero Squadron Disbanded on May 31, 1942 ^[3]

424th Aero Squadron	January 1918	Organized as 424th Aero Squadron at Vancouver Barracks, Washington Re-designated 66th Spruce Squadron, July 1918 transferred to Blind Slough, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

425th Aero Squadron	December 1917	Organized as the 425th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 29th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
425th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 425th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 425th Aero Squadron Disbanded on May 31, 1942 ^[3]

426th Aero Squadron	December 1917	Organized as the 426th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 30th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
426th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 426th Attack Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 426th Aero Squadron Disbanded on May 31, 1942 ^[3]

427th Aero Squadron	January 1918	Organized as the 427th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 47th Spruce Squadron, Raymond, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
427th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 426th Attack Squadron on October 15, 1921; Consolidated on November 27, 1936 with the 426th Aero Squadron Inactivated on July 28, 1936; Disbanded on May 31, 1942 ^[3]

428th Aero Squadron	January 1918	Organized as the 428th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 67th Spruce Squadron, Seaside, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
428th Aero Squadron	Constituted in the Organized Reserve (Michigan) as the 428th Pursuit Squadron on October 15, 1921; Consolidated on November 16, 1936 with the 428th Aero Squadron Disbanded on May 31, 1942 ^[3]

429th Aero Squadron	January 1918	Organized as 429th Aero Squadron at Vancouver Barracks, Washington Re-designated 31st Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

430th Aero Squadron	January1918	Organized as the 430th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 37th Spruce Squadron, Snoqualmie Falla, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
430th Aero Squadron	Constituted in the Organized Reserve (Missouri) as the 430th Pursuit Squadron on October 15, 1921; This squadron was one of the few in the Organized Reserve that possessed facilities, equipment, and aircraft. Squadron personnel were largely pilots and ground support personnel employed by Trans-World Airways (TWA) at the Kansas City Municipal Airport. Participated in a “Fly By” in June 1932 for the Honorable Patrick J. Hurley, Secretary of War, at the grand opening of the Kansas City-St. Louis Waterway; Consolidated on November 25, 1936 with the 430th Aero Squadron Disbanded on May 31, 1942 ^[3]

433d Aero Squadron	January 1918	Organized as 433d Aero Squadron at Vancouver Barracks, Washington Re-designated 68th Spruce Squadron, July 1918 transferred to Olney, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

434th Aero Squadron	January 1918	Organized as 434th Aero Squadron at Vancouver Barracks, Washington Re-designated 69th Spruce Squadron, July 1918 transferred to Clatsop, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

435th Aero Squadron	January1918	Organized as the 435th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 50th Spruce Squadron, Hoquiam, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
435th Aero Squadron	Constituted in the Organized Reserve (Texas) as the 435th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 435th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942 ^[3]

436th Aero Squadron	January1918	Organized as the 436th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 51st Spruce Squadron, Coomopo1ils, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
436th Aero Squadron	Constituted in the Organized Reserve (Colorado) as the 436th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 436th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942 ^[3]

437th Aero Squadron	January 1918	Organized as 437th Aero Squadron at Vancouver Barracks, Washington Re-designated 79th Spruce Squadron, July 1918 transferred to Waldport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

439th Aero Squadron	January 1918	Organized as 439th Aero Squadron at Vancouver Barracks, Washington Re-designated 7th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

440th Aero Squadron	January 1918	Organized as 440th Aero Squadron at Vancouver Barracks, Washington Re-designated 8th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

441st Aero Squadron	January 1918	Organized as 441st Aero Squadron at Vancouver Barracks, Washington Re-designated 9th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

442d Aero Squadron	January 1918	Organized as 442d Aero Squadron at Vancouver Barracks, Washington Re-designated 10th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

443d Aero Squadron	February 1918	Organized as the 447th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 11th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
443d Aero Squadron	Constituted in the Organized Reserve (Massachusetts) as the 443d Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 443d Aero Squadron Inactivated on June 5, 1936; Disbanded on May 31, 1942 ^[3]

444th Aero Squadron	January 1918	Organized as 444th Aero Squadron at Vancouver Barracks, Washington Re-designated 12th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

445th Aero Squadron	February 1918	Organized as 445th Aero Squadron at Camp Darrington, Washington Re-designated 38th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

446th Aero Squadron	February 1918	Organized as 446th Aero Squadron at Vancouver Barracks, Washington Re-designated 53d Spruce Squadron, July 1918 transferred to Enumclaw, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

447th Aero Squadron	February 1918	Organized as the 447th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 70th Spruce Squadron, Miami, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
447th Aero Squadron	Constituted in the Organized Reserve (New York) as the 447th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 447th Aero Squadron Inactivated in June 1929; Disbanded on May 31, 1942 ^[3]

448th Aero Squadron	February 1918	Organized as the 448th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 54th Spruce Squadron, Raymond, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
448th Aero Squadron	Constituted in the Organized Reserve (New York) as the 448th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 448th Aero Squadron Disbanded on May 31, 1942 ^[3]

449th Aero Squadron	February 1918	Organized as the 449th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 55th Spruce Squadron, South Bend, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
449th Aero Squadron	Constituted in the Organized Reserve (New York) as the 449th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 449th Aero Squadron Disbanded on May 31, 1942 ^[3]

450th to 499th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
451st Aero Squadron	February 1918	Organized as 451st Aero Squadron at Vancouver Barracks, Washington Re-designated 56th Spruce Squadron, July 1918 transferred to Nemah, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

452d Aero Squadron	February 1918	Organized as 452d Aero Squadron at Vancouver Barracks, Washington Re-designated 71st Spruce Squadron, July 1918 transferred to Seaside, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

453d Aero Squadron	February 1918	Organized as 453d Aero Squadron at Vancouver Barracks, Washington Re-designated 80th Spruce Squadron, July 1918 transferred to Toledo, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

454th Aero Squadron	February 1918	Organized as 454th Aero Squadron at Vancouver Barracks, Washington Re-designated 57th Spruce Squadron, July 1918 transferred to Raymond, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

455th Aero Squadron	February 1918	Organized as the 455th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 81st Spruce Squadron, Waldport, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
455th Aero Squadron	Constituted in the Organized Reserve (North Carolina) as the 455th Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 455th Bombardment Squadron on August 18, 1933; Consolidated on November 25, 1936 with the 455th Aero Squadron Inactivated on September 19, 1929; Disbanded on May 31, 1942 ^[3]

456th Aero Squadron	February 1918	Organized as the 456th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 72d Spruce Squadron, Clatsop, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
456th Aero Squadron	Constituted in the Organized Reserve (Tennessee) as the 456th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 456th Aero Squadron Disbanded on May 31, 1942 ^[3]

457th Aero Squadron	February 1918	Organized as the 457th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 73d Spruce Squadron, Clatsop, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
457th Aero Squadron	Constituted in the Organized Reserve (Georgia) as the 457th Pursuit Squadron on October 15, 1921; Consolidated on November 25, 1936 with the 457th Aero Squadron Disbanded on May 31, 1942 ^[3]

458th Aero Squadron	February 1918	Organized as the 458th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 74th Spruce Squadron, Clatsop, Oregon, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
458th Aero Squadron	Constituted in the Organized Reserve (Georgia) as the 458th Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 458th Bombardment Squadron on August 18, 1933; Consolidated on December 3, 1936 with the 458th Aero Squadron Disbanded on May 31, 1942 ^[3]

459th Aero Squadron	March 1918	Organized as the 459th Aero Squadron (Construction) at Vancouver Barracks, Washington; Re-designated 58th Spruce Squadron, Aberdeen, Washington, July 1918 Transferred to Vancouver Barracks, November 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
459th Aero Squadron	Constituted in the Organized Reserve (Tennessee) as the 459th Observation Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 459th Aero Squadron Inactivated on September 19, 1929; Disbanded on May 31, 1942 ^[3]

460th Aero Squadron	December 1917	Organized as 460th Aero Squadron at Portland, Oregon Re-designated 105th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

462d Aero Squadron	August 4, 1917	Formed as 48th Aero Squadron (Prov) AEF: October 29, 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: August 1919^[6]^[25]

463d Aero Squadron	August 3, 1917	Formed as 51st Aero Squadron (Prov) AEF: October 30, 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919^[6]^[25]

464th Aero Squadron	August 7, 1917	Formed as 52d Aero Squadron (Prov) AEF: October 29, 1917 – July 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919^[6]^[25]
464th Aero Squadron	Constituted in the United States Army Air Corps as Air Park No. 4, and assigned to the 2d Bombardment Group, Kelly Field, Texas on June 26, 1922; Concurrently organized with personnel and equipment from the 464th Aero Squadron; Re-designated as the 59th Service Squadron on January 25, 1923 Demobilized on September 1, 1936.^[3]

465th Aero Squadron	August 26, 1917	Formed as 53d Aero Squadron (Prov) AEF: October 29, 1917 – March 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: March 1919^[6]^[25]

466th Aero Squadron	July 28, 1917	Formed as 54th Aero Squadron (Prov) AEF: October 29, 1917 – January 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: February 1919^[6]^[25]

467th Aero Squadron	August 6, 1917	Formed as 55th Aero Squadron (Prov) AEF: October 29, 1917 – March 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: March 1919^[6]^[25]

468th Aero Squadron	August 8, 1917	Formed as 56th Aero Squadron (Prov) AEF: October 29, 1917 – June 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Air Service Production Center No. 2. Romorantin Aerodrome Air Service Acceptance Park No. 1 Orly Field, Paris Demobilized: July 1919^[6]^[25]
468th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 468th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 469th Aero Squadron Disbanded on May 31, 1942^[3]

469th Aero Squadron	August 8, 1917	Formed as 57th Aero Squadron (Prov) AEF: October 29, 1917 – March 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome 2d Aviation Instruction Center Tours Aerodrome Demobilized: March 1919^[6]^[25]
469th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 469th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 469th Aero Squadron Disbanded on May 31, 1942^[3]

470th Aero Squadron	August 9, 1917	Formed as 58th Aero Squadron (Prov) AEF: February 5, 1918 – December 1918 Construction Squadron Served at RAF Stations in England Demobilized: December 1918^[6]^[25]
470th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 470th Attack Squadron on October 15, 1921; Consolidated on December 3, 1936 with the 47th Aero Squadron Disbanded on May 31, 1942^[3]

474th Aero Squadron	August 11, 1917	Formed as 62d Aero Squadron (Prov) AEF: March 24, 1918 – January 1919 Construction Squadron Constructed airfields for First Army Demobilized: January 1919^[6]^[25]

475th Aero Squadron	August 1917	Organized as 63d Aero Squadron (Construction), Kelly Field, Texas Re-designated 475th Aero Squadron, February 1918 AEF: February 1918 – December 1918 Demobilized: December 1918^[6]
475th Aero Squadron	Constituted in the Organized Reserve (California) as the 475th Attack Squadron on October 15, 1921; Consolidated on November 16, 1936 with the 475th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942^[3]

476th Aero Squadron	August 1917	Organized as 64th Aero Squadron (Construction), Kelly Field, Texas Re-designated 476th Aero Squadron, February 1918 AEF: February 1918 – December 1918 Demobilized: December 1918^[6]
476th Aero Squadron	Constituted in the Organized Reserve (California) as the 476th Pursuit Squadron on October 15, 1921; Consolidated on January 24, 1931 with the 476th Aero Squadron Disbanded on May 31, 1942^[3]

477th Aero Squadron	August 11, 1917	Formed as 65th Aero Squadron (Prov) AEF: March 21, 1918 – January 1919 Construction Squadron Constructed airfields for First Army Demobilized: January 1919^[6]^[25]
477th Aero Squadron	Constituted in the Organized Reserve (California) as the 477th Pursuit Squadron on October 15, 1921; >Consolidated on January 24, 1931 with the 477th Aero Squadron Disbanded on May 31, 1942^[3]

479th Aero Squadron	August 1917	Organized as 67th Aero Squadron (Construction), Kelly Field, Texas Re-designated 479th Aero Squadron, February 1918 AEF: February 1918 – December 1918 Demobilized: December 1918^[6]
479th Aero Squadron	Constituted in the Organized Reserve (California) as the 479th Pursuit Squadron on October 15, 1921; Relocated on January 28, 1930 to the Los Angeles Municipal Airport, Los Angeles, CA. There the squadron became one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft.; Consolidated on January 24, 1931 with the 479th Aero Squadron Inactivated on September 2, 1937; Disbanded on May 31, 1942^[3]

480th Aero Squadron	August 12, 1917	Formed as 68th Aero Squadron (Prov) AEF: March 21, 1918 – February 1919 Construction Squadron Constructed airfields for First Army Demobilized: February 1919^[6]^[25]

481st Aero Squadron	August 12, 1917	Formed as 69th Aero Squadron (Prov) AEF: March 21, 1918 – February 1919 Construction Squadron Constructed airfields for First Army Demobilized: February 1919^[6]^[25]
481st Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 481st Bombardment Squadron on March 31, 1924; Consolidated on December 3, 1936 with the 483d Aero Squadron Inactivated by June 1940; Disbanded on May 31, 1942^[3]

482d Aero Squadron	August 15, 1917	Formed as 70th Aero Squadron AEF: March 26, 1918 – February 8, 1919 Construction Squadron Demobilized: February 8, 1919^[4]^[6]^[25]
482d Aero Squadron	Constituted in the Organized Reserve (Maryland) as the 482d Bombardment Squadron on March 31, 1924; Consolidated on December 2, 1936 with the 482d Aero Squadron; Inactivated on July 23, 1929; Disbanded on May 31, 1942 Reconstituted and consolidated (Apr 21, 1944) with 482d Bombardment Squadron (Very Heavy) which was constituted on February 28, 1944; Inactivated on June 30, 1946^[3]^[4]

483d Aero Squadron	August 15, 1917	Formed as 71st Aero Squadron AEF: March 21, 1918 – February 1919 Construction Squadron Constructed airfields for First Army Demobilized: February 1919^[6]^[25]
483d Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 483d Bombardment Squadron on March 31, 1924; Consolidated on December 2, 1936 with the 483d Aero Squadron Inactivated on July 23, 1929; Disbanded on May 31, 1942^[3]

484th Aero Squadron	August 15, 1917	Formed as 72d Aero Squadron AEF: March 21, 1918 – January 1919 Construction Squadron Constructed airfields for First Army Demobilized: February 1919^[6]^[25]
484th Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 484th Bombardment Squadron on March 31, 1924; Consolidated on December 2, 1936 with the 484th Aero Squadron; Inactivated on May 12, 1937 by relief of personnel; Disbanded on May 31, 1942 Reconstituted and consolidated (Apr 21, 1944) with 484th Bombardment Squadron (Very Heavy) which was constituted on February 28, 1944; Inactivated on June 30, 1946^[3]^[4]

485th Aero Squadron	August 15, 1917	Formed as 73d Aero Squadron AEF: March 21, 1918 – May 1919 Construction Squadron Constructed airfields for First Army Demobilized: May 1919^[6]^[25]
485th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 485th Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 485th Aero Squadron; Inactivated by June 1937; Disbanded on May 31, 1942 Reconstituted and consolidated February 28, 1944 with the 485th Bombardment Squadron (Very Heavy); inactivated on June 10, 1946^[3]

486th Aero Squadron	August 13, 1917	Formed as 74th Aero Squadron AEF: March 21, 1918 – June 1919 Construction Squadron Constructed airfields for First Army Demobilized: June 1919^[6]^[25]
486th Aero Squadron	Constituted in the Organized Reserve (Indiana) as the 486th Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 486th Aero Squadron Inactivated by March 1930; Disbanded on May 31, 1942^[3]

487th Aero Squadron	August 14, 1917	Formed as 75th Aero Squadron AEF: December 25, 1917 – May 1919 Construction Squadron 2d Air Depot Latrecey Aerodrome Demobilized: May 1919^[6]^[25]
487th Aero Squadron	Constituted in the Organized Reserve (Kentucky) as the 487th Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 487th Aero Squadron Inactivated by March 1930; Disbanded on May 31, 1942^[3]

488th Aero Squadron	August 14, 1917	Formed as 76th Aero Squadron AEF: December 25, 1917 – May 1919 Construction Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: May 1919^[6]^[25]

489th Aero Squadron	August 13, 1917	Formed as 77th Aero Squadron AEF: January 1, 1918 – February 8, 1919 Construction squadron in France Demobilized: March 6, 1919
489th Aero Squadron	Constituted in the Organized Reserve (Washington) as the 489th Bombardment Squadron on March 31, 1924. The squadron was one of a few in the Organized Reserve that possessed facilities, equipment, and aircraft; Consolidated in June 1932 with the 489th Aero Squadron; Inactivated on January 30, 1942 by relief of personnel Consolidated (1958) with 489th Bombardment Squadron (Medium) which was constituted on August 10, 1942; Discontinued, and inactivated on January 1, 1962^[3]^[4] Reactivated as the 489th Reconnaissance Squadron on August 26, 2011 at Beale Air Force Base, California

490th Aero Squadron	August 14, 1917	Formed as 78th Aero Squadron AEF: December 7, 1917– February 1919 Construction Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: February 1919^[6]^[25]
490th Aero Squadron	Constituted in the Organized Reserve (Washington) as the 490th Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 490th Aero Squadron Inactivated on March 2, 1937; Disbanded on May 31, 1942^[3]

491st Aero Squadron	August 14, 1917	Formed as 79th Aero Squadron AEF: December 8, 1917 – January 1919 Construction Squadron 7th Aviation Instruction Center Clermont-Ferrand Aerodrome Demobilized: January 1919^[6]^[25]
491st Aero Squadron	Constituted in the Organized Reserve (Washington) as the 491st Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 491st Aero Squadron; Inactivated on March 2, 1937; Disbanded on May 31, 1942 Consolidated (1958) with 491st Bombardment Squadron (Medium) which was constituted on August 14, 1942; Discontinued, and inactivated, on June 25, 1961^[3]^[4]

492d Aero Squadron	August 15, 1917	Formed as 80th Aero Squadron AEF: December 8, 1917– Construction Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: January 1919^[6]^[25]
492d Aero Squadron	Constituted in the Organized Reserve (Washington) as the 492d Bombardment Squadron on March 31, 1924; Consolidated on December 5, 1936 with the 492d Aero Squadron; Inactivated on March 2, 1937; Disbanded on May 31, 1942 Consolidated (1960) with 492d Bombardment Squadron (Heavy) which was constituted on September 19, 1942; Discontinued, and inactivated on February 1, 1963^[3]^[4]

493d Aero Squadron	July 10, 1917	Formed as 45th Aero Squadron AEF: December 8, 1917 – January 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: January 1919^[6]^[25]
493d Aero Squadron	Constituted in the Organized Reserve (Wisconsin) as the 493d Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 493d Aero Squadron Disbanded on May 31, 1942^[3]

494th Aero Squadron	August 17, 1917	Formed as 82d Aero Squadron AEF: December 8, 1917 – May 1919 Construction Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: May 1919^[6]^[25]
494th Aero Squadron	Constituted in the Organized Reserve (Wisconsin) as the 494th Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 494th Aero Squadron Disbanded on May 31, 1942^[3]

495th Aero Squadron	August 1917	Organized as 83d Aero Squadron (Construction) at Kelly Field, Texas Re-designated February 1918 at Camp Morrison, Virginia AEF: March 1918 – January 1919 Demobilized in January 1919.^[6]
495th Aero Squadron	Constituted in the Organized Reserve (Wisconsin) as the 495th Bombardment Squadron on March 31, 1924; Consolidated on December 7, 1936 with the 495th Aero Squadron Inactivated on December 1, 1929; Disbanded on May 31, 1942^[3]

496th Aero Squadron	October 11, 1917	Formed as 200th Aero Squadron AEF: November 20, 1917 – April 1919 Construction Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: April 1919^[6]^[25]

497th Aero Squadron	October 11, 1917	Formed as 201st Aero Squadron AEF: November 20, 1917 – April 199 Construction Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: April 1919^[6]^[25]

498th Aero Squadron	December 15, 1917	Formed as 202d Aero Squadron AEF: September 25, 1918– January 1919 Construction Squadron Constructed airfields for First Army Demobilized: January 1919^[6]^[25]

499th Aero Squadron	December 19, 1917	Formed as 203d Aero Squadron AEF: November 4, 1918 – March 1919 Construction Squadron Air Service Replacement Concentration Center St. Maixent Replacement Barracks Demobilized: March 1919^[6]^[25]

500th to 799th Aero Squadrons

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
500th Aero Squadron	December 19, 1917	Formed as 204th Aero Squadron AEF: November 9, 1918 – March 1919 Construction Squadron Air Service Replacement Concentration Center St. Maixent Replacement Barracks Demobilized: March 1919^[6]^[25]

501st Aero Squadron	December 1917	Organized as 205th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918; Transferred to several locations within Continental United States, March 1918 – January 1919. Demobilized in January 1919.^[6]
501st Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 501st Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 501st Transport Squadron on October 1, 1933; Consolidated on December 7, 1936 with the 501st Aero Squadron Inactivated by December 7, 1941; Disbanded on May 31, 1942^[3]

502d Aero Squadron	December 1917	Organized as 206th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918; Transferred to several locations within Continental United States, February 1918 – January 1919. Demobilized in January 1919.^[6]
502d Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 502d Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 502d Transport Squadron on October 1, 1933; Consolidated on December 7, 1936 with the 502d Aero Squadron Inactivated on July 23, 1939; Disbanded on May 31, 1942^[3]

503d Aero Squadron	December 1917	Organized as 207th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918 at Dorr Field, Florida. Transferred to Aviation General Supply Depot, Middleton, Pennsylvania, September 1918 Demobilized in March 1919.^[6]
503d Aero Squadron	Constituted in the Organized Reserve (Pennsylvania) as the 503d Pursuit Squadron on October 15, 1921; Reorganized and re-designated as the 503d Transport Squadron on October 1, 1933; Consolidated on December 7, 1936 with the 503d Aero Squadron Disbanded on May 31, 1942^[3]

504th Aero Squadron	December 1917	Organized as 208th Aero Squadron (Construction) at Camp Morrison, Virginia Re-designated February 1918. Transferred to several locations within Continental United States, February 1918 – January 1919. Demobilized in January 1919.^[6]

505th Aero Squadron	December 1917	Organized as 209th Aero Squadron (Construction) at Kelly Field, Texas Re-designated February 1918 at Rich Field, Texas. Transferred to several locations within Continental United States, May 1918 – January 1919. Demobilized in January 1919.^[6]
505th Aero Squadron	Constituted in the Organized Reserve (Texas) as the 505th Pursuit Squadron on October 15, 1921;Reorganized and re-designated as the 505th Transport Squadron on October 1, 1933; Consolidated on November 30, 1936 with the 505th Aero Squadron Inactivated on October 31, 1936; Disbanded on May 31, 1942^[3]

506th Aero Squadron	July 1918	Organized as a construction squadron, Brooks Field, Texas Demobilized, November 1918^[6]

507th Aero Squadron	February 1918	Organized as a construction squadron, Kelly Field, Texas Transferred to Wilbur Wright Field, Ohio, July 1918. Demobilized, November 1918^[6]

508th Aero Squadron	February 1918	Organized as a construction squadron, Kelly Field, Texas Transferred to Gerstner Field, Louisiana, August 1918. Demobilized, November 1918^[6]

601st Aero Squadron	January 1918	Organized as 601st Aero Squadron at Vancouver Barracks, Washington Re-designated 13th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

603d Aero Squadron	February 1918	Organized as 603d Aero Squadron at Vancouver Barracks, Washington Re-designated 14th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

607th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred January 1918 to Fort Wayne, Michigan Demobilized: February 1919^[6]
607th Aero Squadron	Constituted in the Organized Reserve (Indiana) October 1, 1933 as the as the 607th Supply Squadron; Consolidated on November 23, 1936 with 607th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

608th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred August 1918 to Mitchell Field, New York Demobilized: September 1919^[6]
608th Aero Squadron	Constituted in the Organized Reserve (New York) as the 608th Supply Squadron October 1, 1933; Consolidated on December 8, 1936 with 608th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

609th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred August 1918 to Mitchell Field, New York Demobilized: September 1919^[6]
609th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 609th Supply Squadron October 1, 1933; Consolidated on December 8, 1936 with 609th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

610th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred June 1918 to Aviation General Supply Depot, Middletown, Pennsylvania Demobilized: March 1919^[6]
610th Aero Squadron	Constituted in the Organized Reserve (Georgia) October 1, 1933 as the 610th Supply Squadron; Consolidated on December 8, 1936 with 610th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

611th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred June 1918 to Langley Field, Virginia Demobilized: January 1919^[6]
611th Aero Squadron	Constituted in the Organized Reserve (Alabama) October 1, 1933 as the 611th Supply Squadron; Consolidated on December 8, 1936 with 611th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

612th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred July 1918 to Wilbur Wright Field, Ohio Demobilized: March 1919^[6]
612th Aero Squadron	Constituted in the Organized Reserve (New York) October 1, 1933 as the 612th Supply Squadron; Consolidated on November 30, 1937 with 612th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

613th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred August 1918 to Garden City, New York Demobilized: January 1919^[6]
613th Aero Squadron	Constituted in the Organized Reserve (New York) October 1, 1933 as the 613th Supply Squadron; Consolidated on December 3, 1936 with 613th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

614th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred August 1918 to Garden City, New York Demobilized: January 1919^[6]
614th Aero Squadron	Constituted in the Organized Reserve October 1, 1933 as the 614th Supply Squadron; Consolidated on December 3, 1936 with 614th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

615th Aero Squadron	January 1918	Organized as a Supply Squadron, Kelly Field, Texas Transferred July 1918 to Souther Field, Georgia Demobilized: March 1919^[6]
615th Aero Squadron	Constituted in the Organized Reserve October 1, 1933 as the 615th Supply Squadron. Consolidated on December 3, 1936 with 615th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

632d Aero Squadron	August 14, 1917	Formed as 111th Aero Squadron Supply Squadron Kelly Field, Texas Demobilized: August 19, 1919

633d Aero Squadron	August 18, 1917	Formed as 112th Aero Squadron Supply Squadron Kelly Field, Texas Demobilized: August 19, 1919

634th Aero Squadron	August 26, 1917	Supply Squadron, Formed as 113th Aero Squadron, Re-designated February 1918. Assigned to Aviation General Supply Depot, Middletown, Pennsylvania, September 1917. Demobilized March 1919^[6]
634th Aero Squadron	Depot was established in early 1917 as a general supply and ordnance depot. Also known as "Middletown Ordnance Depot"^[16]

635th Aero Squadron	August 1917	Supply Squadron, Formed as 114th Aero Squadron, Re-designated February 1918. Assigned to Aviation General Supply Depot, Richmond, Virginia, September 1917. Demobilized July 1919^[6]
635th Aero Squadron	Depot was established in early 1917 as a general supply depot. Located on the site of the Virginia-Caroline Chemical Company^[16]

636th Aero Squadron	August 28, 1917	Formed as 115th Aero Squadron Re-designated: 636th Aero Squadron July 1, 1918 AEF: December 27, 1917 – May 11, 1919 Supply Squadron Demobilized: April 8, 1919^[26]
636th Aero Squadron	Constituted in the National Guard in 1921 as the 115th Squadron (Observation) and allotted to the state of California; Organized in April 1924 at Hollywood, CA. Relocated on June 16, 1924 to Clover Field, Santa Monica, CA. Concurrently Federally recognized at Clover Field Currently CA ANG 115th Airlift Squadron^[6]^[11]

637th Aero Squadron	August 29, 1917	Formed as 116th Aero Squadron Re-designated: 6379th Aero Squadron July 1, 1918 AEF: December 27, 1917 – March 25, 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: May 20, 1919 ^[8]
637th Aero Squadron	Constituted in the National Guard in 1921 as the 116th Squadron (Observation), and allotted to the state of Washington; Organized on July 24, 1924 and Federally recognized on August 6, 1924 at Felts Field, Parkwater, WA; Consolidated on October 20, 1936 with the 116th Aero Squadron Currently WA ANG 116th Air Refueling Squadron^[4]^[6]^[11]

638th Aero Squadron	August 30, 1917	Formed at 117th Aero Squadron AEF: December 31, 1917 – July 1919 Pursuit Squadron Assigned to 5th Pursuit Group (Did not see combat) Demobilized July 31, 1919 ^[6]^[26]

639th Aero Squadron	August 31, 1917	Formed as 118th Aero Squadron Re-designated: 639th Aero Squadron July 1, 1918 AEF: January 3, 1918 – May 25, 1919 Supply Squadron Demobilized: June 6, 1919
639th Aero Squadron	Constituted in the National Guard in 1921 as the 118th Squadron (Observation) and allotted to the state of Connecticut; Organized on July 27, 1923 and Federally recognized on November 1, 1923 at Brainard Field, Hartford, CT. Currently CT ANG 118th Airlift Squadron^[6]^[11]

640th Aero Squadron	September 1, 1917	Formed as 121st Aero Squadron AEF: Jan 24, 1918 – April 1919 Supply Squadron 3d Air Instructional Center Issoudun Aerodrome Demobilized: April 1919^[6]^[26]

641st Aero Squadron	September 2, 1917	Formed as 122d Aero Squadron AEF: January 24, 1918 – May 1919 Supply Squadron 3d Air Instructional Center Issoudun Aerodrome Demobilized: June 1919^[6]^[26]

642d Aero Squadron	September 2, 1917	Formed as 123d Aero Squadron AEF: January 24, 1918 – May 1919 Supply Squadron 3d Air Instructional Center<BRIssoudun Aerodrome Demobilized: June 1919^[6]^[26]

643d Aero Squadron	September 3, 1917	Formed as 124th Aero Squadron AEF: January 24, 1918 – May 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: June 1919^[6]^[8]^[26]

644th Aero Squadron	September 2, 1917	Formed as 125th Aero Squadron AEF: January 24, 1918 – May 1919 Supply Squadron 3d Air Instructional Center<BRIssoudun Aerodrome Demobilized: June 1919^[6]^[26]

645th Aero Squadron	September 3, 1917	Formed as 126th Aero Squadron AEF: January 28, 1918 – June 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919^[6]^[8]^[26]

646th Aero Squadron	September 3, 1917	Formed as 127th Aero Squadron AEF: January 24, 1918 – April 1919 Supply Squadron Air Service Replacement Concentration Center St. Maixent Replacement Barracks Demobilized: April 1919^[6]^[26]

648th Aero Squadron	September 5, 1917	Formed as 129th Aero Squadron AEF: April 13, 1918 – May 1919 Supply Squadron Split into three flights: (A) 1st Day Bombardment Group Amanty Airdrome (B)First Army Observation Group Vavincourt Aerodrome (C) 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: June 1919 ^[6]^[26]

649th Aero Squadron	September 5, 1917	Formed as 130th Aero Squadron AEF: April 12, 1918 – June 1919 Supply Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: July 1919^[6]^[26]

650th Aero Squadron	September 5, 1917	Formed as 131st Aero Squadron AEF: April 13, 1918 – May 1919 Supply Squadron Air Service Acceptance Park No. 1 Orly Airport, Paris Demobilized: May 1919^[6]^[26]

652d Aero Squadron	September 1917	Formed as the 133d Aero Squadron Supply Squadron, Kelly Field, Texas Re-designated 652d Aero Squadron (Supply) January 1918 Transferred to Garden City, New York January 1918 Transferred to AEF: Training in England entire time Demobilized: December 1918^[6]^[26]
652d Aero Squadron	Constituted in the Organized Reserve (New York) October 1, 1933 as the 652d Repair Squadron; Consolidated on December 3, 1936 with 652d Aero Squadron Never activated; Disbanded May 31, 1942^[3]

653d Aero Squadron	September 1917	Formed as the 134th Aero Squadron Supply Squadron, Kelly Field, Texas Re-designated 653d Aero Squadron (Supply) January 1918 Transferred to Camp Morrison, Virginia, January 1918 Demobilized: December 1918^[6]
653d Aero Squadron	Constituted in the Organized Reserve (New York) October 1, 1933 as the 653d Repair Squadron; Consolidated on December 3, 1936 with 653d Aero Squadron Never activated; Disbanded May 31, 1942^[3]

654th Aero Squadron	December 1917	Formed as the 146th Aero Squadron Supply Squadron, Garden City, New York Re-designated 654th Aero Squadron (Supply) January 1918 Demobilized: January 1919^[6]
654th Aero Squadron	Constituted in the Organized Reserve October 1, 1933 as the 654th Repair Squadron; Consolidated on December 4, 1936 with 654th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

655th Aero Squadron	October 26, 1917	Formed as 220th Aero Squadron AEF: January 30, 1918 – May 1919 Supply Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: May 1919^[6]^[26]
655th Aero Squadron	Constituted in the Organized Reserve October 1, 1933 as the 655th Repair Squadron; Consolidated on December 4, 1936 with 655th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

656th Aero Squadron	December 22, 1917	Formed as 230th Aero Squadron AEF: January 28, 1918 – May 1919 Supply Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: May 1919^[6]^[26]
656th Aero Squadron	Constituted in the Organized Reserve (Nebraska) October 1, 1933 as the 656th Repair Squadron; Consolidated on December 4, 1936 with 656th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

657th Aero Squadron	December 19, 1917	Formed as 231st Aero Squadron AEF: February 24, 1918 – March 1919 Supply Squadron Stationed at various RAF stations in England Demobilized: March 1919^[6]^[26]
657th Aero Squadron	Constituted in the Organized Reserve (Indiana) October 1, 1933 as the 657th Repair Squadron; Consolidated on December 4, 1936 with 657th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

658th Aero Squadron	December 23, 1917	Formed as 232d Aero Squadron AEF: February 25, 1918– May 1919 Supply Squadron Air Service Acceptance Park No. 1 Orly Airport, Paris Demobilized: May 1919^[6]^[26]

659th Aero Squadron	December 22, 1917	Formed as 233d Aero Squadron AEF: April 13, 1918 – July 1919 Advance Section, Services of Supply (SOS) Supply Squadron 1st Air Depot Colombey-les-Belles Aerodrome Demobilized: July 1919^[6]^[8]^[26]
659th Aero Squadron	Constituted in the Organized Reserve (Illinois) October 1, 1933 as the 659th Repair Squadron; Consolidated on December 4, 1936 with 659th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

660th Aero Squadron	December 19, 1917	Formed as 234th Aero Squadron AEF: May 17, 1918 – May 1919 Supply Squadron Air Service Acceptance Park No. 1 Orly Airport, Paris Demobilized: June 1919^[6]^[26]
660th Aero Squadron	Constituted in the Organized Reserve (Alabama) October 1, 1933 as the 660th Repair Squadron; Consolidated on December 4, 1936 with 660th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

661st Aero Squadron	December 1917	Formed as the 235th Aero Squadron Supply Squadron, Aviation General Supply Depot, Kelly Field, Texas Re-designated 661st Aero Squadron (Supply) February 1918 Deployed to AEF May 1918 – December 1918 Demobilized: December 1918^[6]
661st Aero Squadron	Constituted in the Organized Reserve (New Jersey) October 1, 1933 as the 661st Repair Squadron; Consolidated on December 4, 1936 with 661st Aero Squadron Never activated; Disbanded May 31, 1942^[3]

662d Aero Squadron	December 1917	Formed as the 236th Aero Squadron Supply Squadron, Aviation General Supply Depot, Kelly Field, Texas Re-designated 662d Aero Squadron (Supply) February 1918 Demobilized: April 1919^[6]^[9]
662d Aero Squadron	Constituted in the Organized Reserve (New York) October 1, 1933 as the 662d Repair Squadron; >Consolidated on December 4, 1936 with 662d Aero Squadron Never activated; Disbanded May 31, 1942^[3]

663d Aero Squadron	December 1917	Formed as the 237th Aero Squadron Supply Squadron, Kelly Field, Texas Re-designated 662d Aero Squadron (Supply) February 1918 Deployed to AEF May 1918 – December 1918 Demobilized: December 1918^[6]
663d Aero Squadron	Constituted in the Organized Reserve (Louisiana) October 1, 1933 as the 663d Repair Squadron; Consolidated on December 4, 1936 with 663d Aero Squadron Never activated; Disbanded May 31, 1942^[3]

665th Aero Squadron	December 1917	Formed as 239th Aero Squadron Supply Squadron, Kelly Field, Texas Deployed to AEF May 1918 – December 1918 Demobilized: December 1918^[6]
665th Aero Squadron	Constituted in the Organized Reserve October 1, 1933 as the 665th Repair Squadron; Consolidated on December 4, 1936 with 665th Aero Squadron Never activated; Disbanded May 31, 1942^[3]

675th Aero Squadron	September 1917	Formed as: 337th Aero Squadron Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: April 1919 ^[6]^[9]

667th Aero Squadron	December 23, 1917	Formed as 241st Aero Squadron AEF: April 13, 1918 – June 1919 Supply Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: June 1919^[6]^[26]

672d Aero Squadron	December 24, 1917	Formed as 338th Aero Squadron AEF: August 15, 1918 – December 1918 Supply Squadron Training in England entire time Demobilized: December 1918^[6]^[26]

681st Aero Squadron	April 1918	Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]

684th Aero Squadron	October 1918	Aviation General Supply Depot squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]

800th Aero Squadron and above

Aero Squadron	Established	World War I
Aero Squadron	Notes/Subsequent History
800th Aero Squadron	August 27, 1917	Formed as 106th Aero Squadron Re-designated: 800th Aero Squadron July 1, 1918 AEF: January 2, 1918 – April 28, 1919 Repair Squadron Demobilized: July 2, 1919 ^[27]
800th Aero Squadron	Constituted in the National Guard in 1921 as the 135th Squadron (Observation) and allotted to the state of Alabama. Organized and Federally recognized as the 135th Squadron (Observation) on January 21, 1922 with personnel from the "Birmingham Escadrille" (a civilian flying club organized in 1919 by World War I ace Maj. James A. Meissner) and Federally recognized at Roberts Field, Birmingham, AL; Consolidated on October 20, 1936 with the 106th (800th) Aero Squadron Currently AL ANG 106th Air Refueling Squadron^[4]^[6]

801st Aero Squadron	August 27, 1917	Formed as 107th Aero Squadron Re-designated: 801st Aero Squadron July 1, 1918 AEF: January 2, 1918 – March 8, 1919 Repair Squadron Demobilized: March 18, 1919
801st Aero Squadron	Constituted in the National Guard in 1921 as the 107th Squadron (Observation) and allotted to the state of Michigan; Organized and Federally recognized on May 7, 1926 at Detroit, MI. Currently MI ANG 107th Fighter Squadron^[6]^[11]

802d Aero Squadron	August 27, 1917	Formed as 108th Aero Squadron Re-designated: 802d Aero Squadron July 1, 1918 AEF: January 2, 1918 – May 27, 1919 Repair Squadron Demobilized: June 11, 1919
802d Aero Squadron	Constituted in the National Guard in 1921 as the 108th Squadron (Observation) and allotted to the state of Illinois; Organized and Federally recognized on July 1, 1927 at the Municipal Airport, Chicago, IL. Currently IL ANG 108th Air Refueling Squadron^[6]^[11]

803d Aero Squadron	August 27, 1917	Formed as 109th Aero Squadron Re-designated: 803d Aero Squadron July 1, 1918 AEF: January 2, 1918 – June 13, 1919 Repair Squadron Demobilized: June 23, 1919
803d Aero Squadron	Constituted in the National Guard in 1921 as the 109th Squadron (Observation) and allotted to the state of Minnesota; Organized on November 21, 1921 by re-designation of the Observation Squadron, Minnesota National Guard (organized in July 1920 and Federally recognized on January 17, 1921 at Holman Municipal Airport in St. Paul, MN). Currently MN ANG 109th Airlift Squadron^[6]^[11]

804th Aero Squadron	August 27, 1917	Formed as 110th Aero Squadron Repair Squadron Squadron K, Kelly Field, Texas Demobilized: November 18, 1918
804th Aero Squadron	Constituted in the National Guard in 1921 as the 110th Squadron (Observation), and allotted to the state of Missouri Organized and Federally recognized on June 23, 1923 at Anglum Field, St. Louis, MO.; 1st Lt. Charles Lindburgh was a member of the squadron 1925–27; Consolidated on October 20, 1936 with the 109th (804th) Aero Squadron Currently MO ANG 110th Bomb Squadron^[4]^[6]^[11]

805th Aero Squadron	November 23, 1917	Formed as: 244th Aero Squadron AEF: January 15, 1918 – June 1919 Repair Squadron Demobilized: June 1919 ^[6]^[27]
805th Aero Squadron	Constituted in the Organized Reserve (Oregon) on March 31, 1924 as the 805th Observation Squadron; Consolidated on December 8, 1936 with the 805th Aero Squadron Mission was to provide aerial observation support to the Commanding General, Ninth Corps Area. Inactivated on June 11, 1937; Disbanded on May 31, 1942^[3]

806th Aero Squadron	November 1917	Formed as: 245th Aero Squadron AEF: February 1918 – December 1918 Repair Squadron Demobilized: December 1918 ^[6]^[27]
806th Aero Squadron	Constituted in the Organized Reserve (New Jersey) on March 31, 1924 as the 806th Headquarters Squadron; Consolidated on December 8, 1936 with the 806th Aero Squadron Inactivated on November 3, 1936; Disbanded on May 31, 1942^[3]

819th Aero Squadron	January 1918	Aviation repair squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]

820th Aero Squadron	January 1918	Aviation repair squadron Kelly Field, Texas. Demobilized: August 1919 ^[6]^[9]

822d Aero Squadron	April 1918	AEF: April 1918 – July 1919 Re-designated: 6th Air Park 4th Pursuit Group Aircraft/Vehicle maintenance and supply unit Demobilized: July 1919^[6]^[2]
822d Aero Squadron	Constituted in the Army Air Service as Air Park No. 6, and assigned to the 9th Observation Group, Mitchel Field, New York on August 30, 1921; Re-designated as the 61st Service Squadron on January 25, 1923; Consolidated on April 8, 1924 with the 6th Air Park; Consolidated on September 1, 1936 with HHS, 9th Bombardment Group Disbanded on April 20, 1944.^[3]

825th Aero Squadron	January 28, 1918	AEF: September 1, 1918-November1918 Repair Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: December 1918^[6]^[27]

826th Aero Squadron	February 1, 1918	AEF: May 16, 1918 – September 1919 Repair Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: September 1919 ^[6]^[27]

827th Aero Squadron	February 11, 1918	AEF: May 18, 1918 – June 1919 Repair Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: June 1919 ^[6]^[27]

828th Aero Squadron	February 11, 1918	AEF: September 1918 – September 1919 Repair Squadron 2d Air Depot Latrecey Aerodrome Demobilized: September 1919 ^[6]^[27]

829th Aero Squadron	February 11, 1918	AEF: August 31, 1918 – September 1919 Repair Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: September 1919 ^[6]^[27]

830th Aero Squadron	February 11, 1918	AEF: September 15, 1918 – September 1919 Repair Squadron 2d Air Depot Latrecey Aerodrome Demobilized: September 1919 ^[6]^[27]

835th Aero Squadron	February 1, 1918	AEF: April 28, 1918 – March 1919 Repair Squadron 3d Air Depot Courban Aerodrome Demobilized: March 1919^[6]^[27]

837th Aero Squadron	February 1, 1918	AEF: May 14, 1918 – March 1919 Repair Squadron Various RAF Stations in England Demobilized: March 1919 ^[6]^[27]

840th Aero Squadron	February 1, 1918	AEF: May 4, 1918 – March 4, 1919 Repair Squadron 2d Air Depot Latrecey Aerodrome Demobilized: March 1919
840th Aero Squadron	Constituted in the National Guard in 1921 as the 128th Observation Squadron and allotted to the state of Georgia; Reconstituted and consolidated (1944) with 128th Observation Squadron; Organized and Federally recognized on May 1, 1941 Currently GA ANG 128th Airborne Command and Control Squadron^[4]^[6]^[11]

864th Aero Squadron	March 1918	Organized at Air Service Mechanics School, St. Paul Minnesota as a Repair Squadron Assigned to the Air Service Mechanics School Demobilized in November 1919^[6]
864th Aero Squadron	Constituted in the Organized Reserve (Ohio) as the 864th Observation Squadron on December 20, 1928; Consolidated on November 30, 1936 with the 864th Aero Squadron Inactivated by June 1937 at Akron by relief of personnel; Disbanded on May 31, 1942^[3]

865th Aero Squadron	March 1918	Organized at Love Field, Texas as a Repair Squadron Assigned to the Aviation Repair Depot, Dallas, Texas Demobilized in March 1919^[6]
865th Aero Squadron	Constituted in the Organized Reserve (Illinois) as the 865th Observation Squadron on December 20, 1928; Consolidated on November 30, 1936 with the 865th Aero Squadron; Typically conducted Inactive Training Period meetings at the Municipal Airport in Chicago Disbanded on May 31, 1942^[3]

875th Aero Squadron	July 1, 1918	AEF: July 1, 1918 – June 1919 Organized in France Repair Squadron 1st Air Depot Colombey-les-Belles Airdrome Demobilized: June 1919^[6]^[27]

877th Aero Squadron	June 1918	Repair Squadron, Aviation Repair Depot Dallas, Texas Demobilized: March 1919^[6]
877th Aero Squadron	Opened in September 1917, the Depot was attached to Love Field to repair wrecked aircraft and overhaul aircraft engines, closed March 1921^[16]
878th Aero Squadron	June 1918	Repair Squadron, Aviation Repair Depot Dallas, Texas Demobilized: March 1919^[6]

879th Aero Squadron	June 1918	Repair Squadron, Aviation Repair Depot #3, Montgomery, Alabama Demobilized: March 1919^[6]
879th Aero Squadron	Depot was established in January 1918 to repair wrecked aircraft and overhaul aircraft engines. Closed in March 1919^[16]

880th Aero Squadron	June 1918	Repair Squadron, Aviation Repair Depot #3, Montgomery, Alabama Demobilized: March 1919^[6]

881st Aero Squadron	July 1918	Repair Squadron, McCook Field, Ohio Re-designated "Squadron B", July 1918 Demobilized: March 1919^[6]

882d Aero Squadron	June 1918	Repair Squadron, Aviation Repair Depot #3, Montgomery, Alabama Demobilized: March 1919^[6]

883d Aero Squadron	June 1918	Repair Squadron, Aviation Repair Depot #3, Montgomery, Alabama Demobilized: March 1919^[6]

1099th Aero Squadron	May 20, 1918	AEF: May 20, 1918 – March 1919 Organized in England Repair Squadron 3d Air Depot Courban Aerodrome Demobilized: March 1919^[6]^[27]

1101st Aero Squadron	April 13, 1918	AEF: April 13, 1918 – February 1919 Organized in France Air Service Replacement Squadron 1st Air Depot Colombey-les-Belles Airdrome Demobilized: March 1919 ^[6]^[27]

1102d Aero Squadron	May 12, 1918	AEF: May 12, 1918 – February 1919 Organized in France Air Service Replacement Squadron 1st Air Depot Colombey-les-Belles Airdrome Demobilized: March 1919 ^[6]^[27]

1103d Aero Squadron	May 9, 1918	AEF: May 9, 1918 – February 1919 Organized in France Air Service Replacement Squadron 2d Aviation Instruction Center Tours Aerodrome Demobilized: March 1919 ^[6]^[27]

1104th Aero Squadron	May 22, 1918	AEF: May 22, 1918 – June 1919 Organized in France Air Service Replacement Squadron 3d Aviation Instruction Center Issoudun Aerodrome Demobilized: July 1919 ^[6]^[27]

1105th Aero Squadron	May 26, 1918	AEF: May 26, 1918 – July 1919 Organized in France Air Service Replacement Squadron 7th Aviation Instruction Center Clermont-Ferrand Aerodrome Demobilized: July 1919^[6]^[27]

1106th Aero Squadron	June 1, 1918	AEF: June 1, 1918 – September 1919 Organized in France Air Service Replacement Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: September 1919^[6]^[27]

1107th Aero Squadron	July 27, 1918	AEF: July 27, 1918 – July 1919 Organized in England Air Service Replacement Squadron Various RAF Stations in England Demobilized in England: July 1919^[6]^[27]

1108th Aero Squadron	August 15, 1918	AEF: August 15, 1918 – May 1919 Organized in France Air Service Replacement Squadron Air Service Production Center No. 2. Romorantin Aerodrome Demobilized: June 1919^[6]^[27]

1110th Aero Squadron	August 1918	AEF: Organized and demobilized overseas troops Demobilized December 1918^[6]

1111th Aero Squadron	October 5, 1918	AEF: October 5, 1918 – September 1919 Organized in Italy Air Service Replacement Squadron 8th Aviation Instruction Center Turin, Italy Demobilized: September 1919 ^[6]^[27]

Provisional squadrons, Spruce Production Division

Aero Squadron	Established	World War I
1st Prov. Squadron	March 1918	Organized as 1st Provisional Squadron at Vancouver Barracks, Washington Re-designated 21st Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
2d Prov. Squadron	March 1918	Organized as 2d Provisional Squadron at Vancouver Barracks, Washington Re-designated 22d Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
3d Prov. Squadron	March 1918	Organized as 3d Provisional Squadron at Vancouver Barracks, Washington Re-designated 23d Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
4th Prov. Squadron	March 1918	Organized as 1st Provisional Squadron at Vancouver Barracks, Washington Re-designated 24th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
5th Prov. Squadron	March 1918	Organized as 5th Provisional Squadron at Vancouver Barracks, Washington Re-designated 25th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
6th Prov. Squadron	March 1918	Organized as 6th Provisional Squadron at Vancouver Barracks, Washington Re-designated 26th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
7th Prov. Squadron	March 1918	Organized as 7th Provisional Squadron at Vancouver Barracks, Washington Re-designated 59th Spruce Squadron, July 1918, transferred to Raymond, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
8th Prov. Squadron	March 1918	Organized as 8th Provisional Squadron at Vancouver Barracks, Washington Re-designated 75th Spruce Squadron, July 1918, transferred to Clatsop, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
9th Prov. Squadron	March 1918	Organized as 9th Provisional Squadron at Vancouver Barracks, Washington Re-designated 60th Spruce Squadron, July 1918, transferred to Hoquiam, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
11th Prov. Squadron	March 1918	Organized as 11th Provisional Squadron at Vancouver Barracks, Washington Re-designated 75th Spruce Squadron, July 1918, transferred to Astoria, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
12th Prov. Squadron	March 1918	Organized as 12th Provisional Squadron at Vancouver Barracks, Washington Re-designated 76th Spruce Squadron, July 1918, transferred to Bridal Veil, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
13th Prov. Squadron	April 1918	Organized as 13th Provisional Squadron at Vancouver Barracks, Washington Re-designated 77th Spruce Squadron, July 1918, transferred to Clatsop, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
14th Prov. Squadron	April 1918	Organized as 14th Provisional Squadron at Vancouver Barracks, Washington Re-designated 78th Spruce Squadron, July 1918, transferred to Astoria, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
15th Prov. Squadron	April 1918	Organized as 15th Provisional Squadron at Vancouver Barracks, Washington Re-designated 61st Spruce Squadron, July 1918, transferred to Nemah, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
16th Prov. Squadron	April 1918	Organized as 16th Provisional Squadron at Vancouver Barracks, Washington Re-designated 82d Spruce Squadron, July 1918, transferred to Yaquina, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
17th Prov. Squadron	April 1918	Organized as 17th Provisional Squadron at Vancouver Barracks, Washington Re-designated 62d Spruce Squadron, July 1918, transferred to Elma, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
18th Prov. Squadron	April 1918	Organized as 18th Provisional Squadron at Vancouver Barracks, Washington Re-designated 83d Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
19th Prov. Squadron	April 1918	Organized as 19th Provisional Squadron at Vancouver Barracks, Washington Re-designated 63d Spruce Squadron, July 1918, transferred to Bay City, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
20th Prov. Squadron	April 1918	Organized as 20th Provisional Squadron at Vancouver Barracks, Washington Re-designated 84th Spruce Squadron, July 1918, transferred to Waldport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
21st Prov. Squadron	May 1918	Organized as 21st Provisional Squadron at Vancouver Barracks, Washington Re-designated 85th Spruce Squadron, July 1918, transferred to Waldport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
22d Prov. Squadron	May 1918	Organized as 22d Provisional Squadron at Vancouver Barracks, Washington Re-designated 86th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
23d Prov. Squadron	June 1918	Organized as 23d Provisional Squadron at Vancouver Barracks, Washington Re-designated 106th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
24th Prov. Squadron	June 1918	Organized as 24th Provisional Squadron at Vancouver Barracks, Washington Re-designated 87th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
25th Prov. Squadron	June 1918	Organized as 25th Provisional Squadron at Vancouver Barracks, Washington Re-designated 88th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
26th Prov. Squadron	June 1918	Organized as 26th Provisional Squadron at Vancouver Barracks, Washington Re-designated 89th Spruce Squadron, July 1918, transferred to Waldport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
27th Prov. Squadron	June 1918	Organized as 27th Provisional Squadron at Vancouver Barracks, Washington Re-designated 90th Spruce Squadron, July 1918, transferred to Newport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
28th Prov. Squadron	June 1918	Organized as 28th Provisional Squadron at Vancouver Barracks, Washington Re-designated 91st Spruce Squadron, July 1918, transferred to Yaquina, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
29th Prov. Squadron	June 1918	Organized as 29th Provisional Squadron at Vancouver Barracks, Washington Re-designated 92d Spruce Squadron, July 1918, transferred to Agate Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
30th Prov. Squadron	June 1918	Organized as 30th Provisional Squadron at Vancouver Barracks, Washington Re-designated 93d Spruce Squadron, July 1918, transferred to Newport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
31st Prov. Squadron	July 1918	Organized as 31st Provisional Squadron at Vancouver Barracks, Washington Re-designated 27th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
32d Prov. Squadron	July 1918	Organized as 32d Provisional Squadron at Vancouver Barracks, Washington Re-designated 28th Spruce Squadron, July 1918^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
33d Prov. Squadron	July 1918	Organized as 32d Provisional Squadron at Vancouver Barracks, Washington Re-designated 94th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
34th Prov. Squadron	July 1918	Organized as 34th Provisional Squadron at Vancouver Barracks, Washington Re-designated 95th Spruce Squadron, July 1918, transferred to Waldport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
35th Prov. Squadron	July 1918	Organized as 35th Provisional Squadron at Vancouver Barracks, Washington Re-designated 103d Spruce Squadron, July 1918, transferred to Coquille, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
36th Prov. Squadron	July 1918	Organized as 36th Provisional Squadron at Vancouver Barracks, Washington Re-designated 96th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
37th Prov. Squadron	July 1918	Organized as 37th Provisional Squadron at Vancouver Barracks, Washington Re-designated 97th Spruce Squadron, July 1918, transferred to Newport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
38th Prov. Squadron	July 1918	Organized as 38th Provisional Squadron at Vancouver Barracks, Washington Re-designated 98th Spruce Squadron, July 1918, transferred to Newport, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
39th Prov. Squadron	July 1918	Organized as 39th Provisional Squadron at Vancouver Barracks, Washington Re-designated 99th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
40th Prov. Squadron	July 1918	Organized as 40th Provisional Squadron at Vancouver Barracks, Washington Re-designated 100th Spruce Squadron, July 1918, transferred to South Beach, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
41st Prov. Squadron	July 1918	Organized as 41st Provisional Squadron at Vancouver Barracks, Washington Re-designated 40th Spruce Squadron, July 1918, transferred to Joyce, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
42d Prov. Squadron	July 1918	Organized as 42d Provisional Squadron at Vancouver Barracks, Washington Re-designated 101st Spruce Squadron, July 1918, transferred to Toledo, Oregon^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
43d Prov. Squadron	July 1918	Organized as 43d Provisional Squadron at Vancouver Barracks, Washington Re-designated 41st Spruce Squadron, July 1918, transferred to Joyce, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
44th Prov. Squadron	July 1918	Organized as 44th Provisional Squadron at Vancouver Barracks, Washington Re-designated 64th Spruce Squadron, July 1918, transferred to Aberdeen, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
45th Prov. Squadron	July 1918	Organized as 45th Provisional Squadron at Vancouver Barracks, Washington Re-designated 65th Spruce Squadron, July 1918, transferred to Raymond, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
46th Prov. Squadron	July 1918	Organized as 46th Provisional Squadron at Vancouver Barracks, Washington Re-designated 107th Spruce Squadron, July 1918, transferred to Cosmopolis, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]
47th Prov. Squadron	July 1918	Organized as 47th Provisional Squadron at Vancouver Barracks, Washington Re-designated 108th Spruce Squadron, July 1918, transferred to Humptulips, Washington^[6] Assigned to Spruce Production Division; Demobilized: January 1919^[6]

References

This article incorporates public domain material from the Air Force Historical Research Agency

^ ^a ^b ^c ^d ^e ^f ^g USAF Historical Studies: No. 98, The United States Army Air Arm, April 1861 to April 1917 USAF Historical Division, Research Studies Institute Air University, May 1958
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc ^bd ^be ^bf ^bg ^bh ^bi ^bj ^bk ^bl ^bm ^bn ^bo ^bp ^bq ^br ^bs ^bt ^bu ^bv ^bw ^bx ^by ^bz ^ca ^cb ^cc ^cd ^ce ^cf ^cg ^ch ^ci ^cj ^ck ^cl ^cm ^cn ^co ^cp ^cq ^cr ^cs ^ct ^cu ^cv ^cw ^cx ^cy ^cz ^da ^db ^dc ^dd ^de ^df ^dg ^dh ^di ^dj ^dk ^dl ^dm ^dn ^do ^dp ^dq ^dr ^ds ^dt ^du ^dv ^dw ^dx ^dy ^dz ^ea ^eb ^ec ^ed ^ee ^ef ^eg ^eh ^ei ^ej ^ek ^el ^em ^en ^eo ^ep ^eq ^er ^es ^et ^eu ^ev ^ew ^ex ^ey ^ez ^fa ^fb ^fc ^fd ^fe ^ff ^fg ^fh ^fi ^fj ^fk ^fl ^fm ^fn ^fo ^fp ^fq ^fr ^fs ^ft ^fu ^fv ^fw ^fx ^fy ^fz ^ga ^gb ^gc ^gd ^ge ^gf ^gg ^gh ^gi ^gj ^gk ^gl ^gm ^gn ^go ^gp ^gq ^gr ^gs ^gt ^gu ^gv ^gw ^gx ^gy ^gz ^ha ^hb ^hc ^hd ^he ^hf ^hg ^hh ^hi ^hj Clay, Lt.Col. Steven E. (2010). US Army Order of Battle 1919–1941 Vol. 3: The Services: Air Service, Engineers, and Special Troops Organizations (PDF). Command and General Staff College, Kansas: Combat Studies Institute Press. ISBN 978-0-9841901-4-0. Retrieved September 20, 2011.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc ^bd ^be ^bf ^bg ^bh ^bi ^bj ^bk ^bl ^bm ^bn ^bo ^bp ^bq ^br ^bs ^bt ^bu ^bv ^bw ^bx ^by ^bz ^ca ^cb Maurer, Maurer. Combat Squadrons of the Air Force: World War II. Maxwell Air Force Base, Alabama: Office of Air Force History, 1982.
^ Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 2, 9th and 10th Aero Squadrons
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc ^bd ^be ^bf ^bg ^bh ^bi ^bj ^bk ^bl ^bm ^bn ^bo ^bp ^bq ^br ^bs ^bt ^bu ^bv ^bw ^bx ^by ^bz ^ca ^cb ^cc ^cd ^ce ^cf ^cg ^ch ^ci ^cj ^ck ^cl ^cm ^cn ^co ^cp ^cq ^cr ^cs ^ct ^cu ^cv ^cw ^cx ^cy ^cz ^da ^db ^dc ^dd ^de ^df ^dg ^dh ^di ^dj ^dk ^dl ^dm ^dn ^do ^dp ^dq ^dr ^ds ^dt ^du ^dv ^dw ^dx ^dy ^dz ^ea ^eb ^ec ^ed ^ee ^ef ^eg ^eh ^ei ^ej ^ek ^el ^em ^en ^eo ^ep ^eq ^er ^es ^et ^eu ^ev ^ew ^ex ^ey ^ez ^fa ^fb ^fc ^fd ^fe ^ff ^fg ^fh ^fi ^fj ^fk ^fl ^fm ^fn ^fo ^fp ^fq ^fr ^fs ^ft ^fu ^fv ^fw ^fx ^fy ^fz ^ga ^gb ^gc ^gd ^ge ^gf ^gg ^gh ^gi ^gj ^gk ^gl ^gm ^gn ^go ^gp ^gq ^gr ^gs ^gt ^gu ^gv ^gw ^gx ^gy ^gz ^ha ^hb ^hc ^hd ^he ^hf ^hg ^hh ^hi ^hj ^hk ^hl ^hm ^hn ^ho ^hp ^hq ^hr ^hs ^ht ^hu ^hv ^hw ^hx ^hy ^hz ^ia ^ib ^ic ^id ^ie ^if ^ig ^ih ⁱⁱ ^ij ^ik ^il ^im ⁱⁿ ^io ^ip ^iq ^ir ^is ^it ^iu ^iv ^iw ^ix ^iy ^iz ^ja ^jb ^jc ^jd ^je ^jf ^jg ^jh ^ji ^jj ^jk ^jl ^jm ^jn ^jo ^jp ^jq ^jr ^js ^jt ^ju ^jv ^jw ^jx ^jy ^jz ^ka ^kb ^kc ^kd ^ke ^kf ^kg ^kh ^ki ^kj ^kk ^kl ^km ^kn ^ko ^kp ^kq ^kr ^ks ^kt ^ku ^kv ^kw ^kx ^ky ^kz ^la ^lb ^lc ^ld ^le ^lf ^lg ^lh ^li ^lj ^lk ^ll ^lm ^ln ^lo ^lp ^lq ^lr ^ls ^lt ^lu ^lv ^lw ^lx ^ly ^lz ^ma ^mb ^mc ^md ^me ^mf ^mg ^mh ^mi ^mj ^mk ^ml ^mm ^mn ^mo ^mp ^mq ^mr ^ms ^mt ^mu ^mv ^mw ^mx ^my ^mz ^na ^nb ^nc ^nd ^ne ^nf ^ng ^nh ⁿⁱ ^nj ^nk ^nl ^nm ⁿⁿ ^no ^np ^nq ^nr ^ns ^nt ^nu ^nv ^nw ^nx ^ny ^nz ^oa ^ob ^oc ^od ^oe ^of ^og ^oh ^oi ^oj ^ok ^ol ^om ^on ^oo ^op ^oq ^or ^os ^ot ^ou ^ov ^ow ^ox ^oy ^oz ^pa ^pb ^pc ^pd ^pe ^pf ^pg ^ph ^pi ^pj ^pk ^pl ^pm ^pn ^po ^pp ^pq ^pr ^ps ^pt ^pu ^pv ^pw ^px ^py ^pz ^qa ^qb ^qc ^qd ^qe ^qf ^qg ^qh ^qi ^qj ^qk ^ql ^qm ^qn ^qo ^qp ^qq ^qr ^qs ^qt ^qu ^qv ^qw ^qx ^qy ^qz ^ra ^rb ^rc ^rd ^re ^rf ^rg ^rh ^ri ^rj ^rk ^rl ^rm ^rn ^ro ^rp ^rq ^rr ^rs ^rt ^ru ^rv ^rw ^rx ^ry ^rz ^sa ^sb ^sc ^sd ^se ^sf ^sg ^sh ^si ^sj ^sk ^sl ^sm ^sn ^so ^sp ^sq ^sr ^ss ^st ^su ^sv ^sw ^sx ^sy ^sz ^ta ^tb ^tc ^td ^te ^tf ^tg ^th ^ti ^tj ^tk ^tl ^tm ^tn ^to ^tp ^tq ^tr ^ts ^tt ^tu ^tv ^tw ^tx ^ty ^tz ^ua ^ub ^uc ^ud ^ue ^uf ^ug ^uh ^ui ^uj ^uk ^ul ^um ^un ^uo ^up ^uq ^ur ^us ^ut ^uu ^uv ^uw ^ux ^uy ^uz ^va ^vb Order of Battle of the United States Land Forces in the First World War, Volume 3, Part 3, Center of Military History, United States Army, 1949 (1988 Reprint)
^ AFHRA 42d Attack Squadron lineage and history
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Series "N", Volume 16, Gorrell's History of the Air Service and Special Aviation Maps AND Station Lists for Air Service Units, Oct–Dec 1918
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m H. D. Kroll (editor), Kelly Field in the Great World War, 2d edition, 1919
^ ^a ^b ^c ^d ^e Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 15, 97th-102d Aero Squadrons
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t Rosenfeld, Susan and Gross, Charles J (2007), Air National Guard at 60: A History. Air National Guard history program AFD-080527-040
^ AFHRA 94th Fighter Squadron lineage and history
^ Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 16, 103d Aero Squadron
^ AFHRA 13th Bomb Squadron lineage and history
^ ^a ^b ^c ^d ^e ^f ^g ^h Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 17, 104th, 105th, 120th, 135th, 137th–139th, 141st, and 142d Aero Squadrons
^ ^a ^b ^c ^d ^e ^f Robert Swanson, Domestic United States Military Facilities of the First World War 1917–1919
^ AFHRA lineage and history 17th Weapons Squadron
^ Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 19, 148th Aero Squadron
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 20, 149th, 151st–155th, 157th–159th, 161st-163d, 165th, 166th, 171st–174th, 176th, 182d, 184th–186th, 188th, and 199th
^ National Archives copy of "HISTORY OF 156th AERO SQUADRON" provided by Commanding Officer, 1st. Lieut. Joseph H. McCandless at muster out
^ 49th Test and Evaluation Squadron AFHRA lineage and history
^ Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 21, 213th Aero Squadron
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 22, 222d, 223d, 227th, 247th, 248th, 257th–261st, 264th, 266th, 267th, 269th, 270th, 278th, 281st, 309th, 334th, 338th, 341st, 350th, 351st, 353d, 354th, 369th, 370th, and 372d-376th Aero Squadrons
^ Microfilm: Morning Reports, 255 Aero Squadron. NARA National Personnel Records Center; St. Loius, MO
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 23, 400th, 462d-470th, 474th, and 480th–500th Aero Squadrons
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 24, 636th–646th, 648th–650th, 655th–660th, and 667th Aero Squadrons
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 25, 800th-803d, 805th, 806th, 825th–830th, 835th, 837th, 875th, 1099th, 1101st–1108th, and 1111th Aero Squadrons

External links

Kroll, Harry David. – Kelly Field in the Great World War. – Press of San Antonio. – 1919. – Page 82.[1]
http://www.afhra.af.mil/index.asp
http://www.usaww1.com/index.php4
Equipment for aero units of the Aviation Section (Signal Corps), tentative, 1916
Gorrell's History – AEF Air Service
squadron assignments
Squadron Insignias
http://www.worldwar1.com/dbc/airserv1.htm
http://www.tioh.hqda.pentagon.mil/Heraldry/AirForce/AirForceHeraldry.aspx
National Personnel Records Center

[AU-1] ^ ^a ^b ^c ^d ^e ^f ^g USAF Historical Studies: No. 98, The United States Army Air Arm, April 1861 to April 1917 USAF Historical Division, Research Studies Institute Air University, May 1958

[USWD-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920

[Clay-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc ^bd ^be ^bf ^bg ^bh ^bi ^bj ^bk ^bl ^bm ^bn ^bo ^bp ^bq ^br ^bs ^bt ^bu ^bv ^bw ^bx ^by ^bz ^ca ^cb ^cc ^cd ^ce ^cf ^cg ^ch ^ci ^cj ^ck ^cl ^cm ^cn ^co ^cp ^cq ^cr ^cs ^ct ^cu ^cv ^cw ^cx ^cy ^cz ^da ^db ^dc ^dd ^de ^df ^dg ^dh ^di ^dj ^dk ^dl ^dm ^dn ^do ^dp ^dq ^dr ^ds ^dt ^du ^dv ^dw ^dx ^dy ^dz ^ea ^eb ^ec ^ed ^ee ^ef ^eg ^eh ^ei ^ej ^ek ^el ^em ^en ^eo ^ep ^eq ^er ^es ^et ^eu ^ev ^ew ^ex ^ey ^ez ^fa ^fb ^fc ^fd ^fe ^ff ^fg ^fh ^fi ^fj ^fk ^fl ^fm ^fn ^fo ^fp ^fq ^fr ^fs ^ft ^fu ^fv ^fw ^fx ^fy ^fz ^ga ^gb ^gc ^gd ^ge ^gf ^gg ^gh ^gi ^gj ^gk ^gl ^gm ^gn ^go ^gp ^gq ^gr ^gs ^gt ^gu ^gv ^gw ^gx ^gy ^gz ^ha ^hb ^hc ^hd ^he ^hf ^hg ^hh ^hi ^hj Clay, Lt.Col. Steven E. (2010). US Army Order of Battle 1919–1941 Vol. 3: The Services: Air Service, Engineers, and Special Troops Organizations (PDF). Command and General Staff College, Kansas: Combat Studies Institute Press. ISBN 978-0-9841901-4-0. Retrieved September 20, 2011.

[Maurer-4] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc ^bd ^be ^bf ^bg ^bh ^bi ^bj ^bk ^bl ^bm ^bn ^bo ^bp ^bq ^br ^bs ^bt ^bu ^bv ^bw ^bx ^by ^bz ^ca ^cb Maurer, Maurer. Combat Squadrons of the Air Force: World War II. Maxwell Air Force Base, Alabama: Office of Air Force History, 1982.

[Gorrell2-5] Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 2, 9th and 10th Aero Squadrons

[CMA-6] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at ^au ^av ^aw ^ax ^ay ^az ^ba ^bb ^bc ^bd ^be ^bf ^bg ^bh ^bi ^bj ^bk ^bl ^bm ^bn ^bo ^bp ^bq ^br ^bs ^bt ^bu ^bv ^bw ^bx ^by ^bz ^ca ^cb ^cc ^cd ^ce ^cf ^cg ^ch ^ci ^cj ^ck ^cl ^cm ^cn ^co ^cp ^cq ^cr ^cs ^ct ^cu ^cv ^cw ^cx ^cy ^cz ^da ^db ^dc ^dd ^de ^df ^dg ^dh ^di ^dj ^dk ^dl ^dm ^dn ^do ^dp ^dq ^dr ^ds ^dt ^du ^dv ^dw ^dx ^dy ^dz ^ea ^eb ^ec ^ed ^ee ^ef ^eg ^eh ^ei ^ej ^ek ^el ^em ^en ^eo ^ep ^eq ^er ^es ^et ^eu ^ev ^ew ^ex ^ey ^ez ^fa ^fb ^fc ^fd ^fe ^ff ^fg ^fh ^fi ^fj ^fk ^fl ^fm ^fn ^fo ^fp ^fq ^fr ^fs ^ft ^fu ^fv ^fw ^fx ^fy ^fz ^ga ^gb ^gc ^gd ^ge ^gf ^gg ^gh ^gi ^gj ^gk ^gl ^gm ^gn ^go ^gp ^gq ^gr ^gs ^gt ^gu ^gv ^gw ^gx ^gy ^gz ^ha ^hb ^hc ^hd ^he ^hf ^hg ^hh ^hi ^hj ^hk ^hl ^hm ^hn ^ho ^hp ^hq ^hr ^hs ^ht ^hu ^hv ^hw ^hx ^hy ^hz ^ia ^ib ^ic ^id ^ie ^if ^ig ^ih ⁱⁱ ^ij ^ik ^il ^im ⁱⁿ ^io ^ip ^iq ^ir ^is ^it ^iu ^iv ^iw ^ix ^iy ^iz ^ja ^jb ^jc ^jd ^je ^jf ^jg ^jh ^ji ^jj ^jk ^jl ^jm ^jn ^jo ^jp ^jq ^jr ^js ^jt ^ju ^jv ^jw ^jx ^jy ^jz ^ka ^kb ^kc ^kd ^ke ^kf ^kg ^kh ^ki ^kj ^kk ^kl ^km ^kn ^ko ^kp ^kq ^kr ^ks ^kt ^ku ^kv ^kw ^kx ^ky ^kz ^la ^lb ^lc ^ld ^le ^lf ^lg ^lh ^li ^lj ^lk ^ll ^lm ^ln ^lo ^lp ^lq ^lr ^ls ^lt ^lu ^lv ^lw ^lx ^ly ^lz ^ma ^mb ^mc ^md ^me ^mf ^mg ^mh ^mi ^mj ^mk ^ml ^mm ^mn ^mo ^mp ^mq ^mr ^ms ^mt ^mu ^mv ^mw ^mx ^my ^mz ^na ^nb ^nc ^nd ^ne ^nf ^ng ^nh ⁿⁱ ^nj ^nk ^nl ^nm ⁿⁿ ^no ^np ^nq ^nr ^ns ^nt ^nu ^nv ^nw ^nx ^ny ^nz ^oa ^ob ^oc ^od ^oe ^of ^og ^oh ^oi ^oj ^ok ^ol ^om ^on ^oo ^op ^oq ^or ^os ^ot ^ou ^ov ^ow ^ox ^oy ^oz ^pa ^pb ^pc ^pd ^pe ^pf ^pg ^ph ^pi ^pj ^pk ^pl ^pm ^pn ^po ^pp ^pq ^pr ^ps ^pt ^pu ^pv ^pw ^px ^py ^pz ^qa ^qb ^qc ^qd ^qe ^qf ^qg ^qh ^qi ^qj ^qk ^ql ^qm ^qn ^qo ^qp ^qq ^qr ^qs ^qt ^qu ^qv ^qw ^qx ^qy ^qz ^ra ^rb ^rc ^rd ^re ^rf ^rg ^rh ^ri ^rj ^rk ^rl ^rm ^rn ^ro ^rp ^rq ^rr ^rs ^rt ^ru ^rv ^rw ^rx ^ry ^rz ^sa ^sb ^sc ^sd ^se ^sf ^sg ^sh ^si ^sj ^sk ^sl ^sm ^sn ^so ^sp ^sq ^sr ^ss ^st ^su ^sv ^sw ^sx ^sy ^sz ^ta ^tb ^tc ^td ^te ^tf ^tg ^th ^ti ^tj ^tk ^tl ^tm ^tn ^to ^tp ^tq ^tr ^ts ^tt ^tu ^tv ^tw ^tx ^ty ^tz ^ua ^ub ^uc ^ud ^ue ^uf ^ug ^uh ^ui ^uj ^uk ^ul ^um ^un ^uo ^up ^uq ^ur ^us ^ut ^uu ^uv ^uw ^ux ^uy ^uz ^va ^vb Order of Battle of the United States Land Forces in the First World War, Volume 3, Part 3, Center of Military History, United States Army, 1949 (1988 Reprint)

[7] AFHRA 42d Attack Squadron lineage and history

[GorrellN16-8] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Series "N", Volume 16, Gorrell's History of the Air Service and Special Aviation Maps AND Station Lists for Air Service Units, Oct–Dec 1918

[Kroll-9] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m H. D. Kroll (editor), Kelly Field in the Great World War, 2d edition, 1919

[Gorrell15-10] Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 15, 97th-102d Aero Squadrons

[ANG-11] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t Rosenfeld, Susan and Gross, Charles J (2007), Air National Guard at 60: A History. Air National Guard history program AFD-080527-040

[12] AFHRA 94th Fighter Squadron lineage and history

[Gorrell16-13] Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 16, 103d Aero Squadron

[14] AFHRA 13th Bomb Squadron lineage and history

[Gorrell17-15] ^ ^a ^b ^c ^d ^e ^f ^g ^h Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 17, 104th, 105th, 120th, 135th, 137th–139th, 141st, and 142d Aero Squadrons

[Swanson-16] ^ ^a ^b ^c ^d ^e ^f Robert Swanson, Domestic United States Military Facilities of the First World War 1917–1919

[17] AFHRA lineage and history 17th Weapons Squadron

[Gorrell19-18] Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 19, 148th Aero Squadron

[Gorrell20-19] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 20, 149th, 151st–155th, 157th–159th, 161st-163d, 165th, 166th, 171st–174th, 176th, 182d, 184th–186th, 188th, and 199th

[20] National Archives copy of "HISTORY OF 156th AERO SQUADRON" provided by Commanding Officer, 1st. Lieut. Joseph H. McCandless at muster out

[21] 49th Test and Evaluation Squadron AFHRA lineage and history

[Gorrell21-22] Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 21, 213th Aero Squadron

[Gorrell22-23] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 22, 222d, 223d, 227th, 247th, 248th, 257th–261st, 264th, 266th, 267th, 269th, 270th, 278th, 281st, 309th, 334th, 338th, 341st, 350th, 351st, 353d, 354th, 369th, 370th, and 372d-376th Aero Squadrons

[24] Microfilm: Morning Reports, 255 Aero Squadron. NARA National Personnel Records Center; St. Loius, MO

[Gorrell23-25] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 23, 400th, 462d-470th, 474th, and 480th–500th Aero Squadrons

[Gorrell24-26] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 24, 636th–646th, 648th–650th, 655th–660th, and 667th Aero Squadrons

[Gorrell25-27] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 25, 800th-803d, 805th, 806th, 825th–830th, 835th, 837th, 875th, 1099th, 1101st–1108th, and 1111th Aero Squadrons

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

[19]

[20]

@@ Line 40: / Line 40: @@
 | rowspan=2| [[1st Aero Squadron]]
 | March 5, 1913
-| Formed as: 1st Provisional Aero Squadron<br>Pre-WWI service in Mexico and Texas<ref name="AU"/><br>AEF: April 6, 1918 – May 12, 1919<br>Corps Observation Squadron<br>Combat with I Corps Observation Group
+| Formed as: 1st Provisional Aero Squadron<br>Pre-WWI service in Mexico and Texas<ref name="AU"/><br>AEF: April 6, 1918 – May 12, 1919<br>Corps Observation Squadron<br>Combat with I Corps Observation Group<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul, Aisne-Marne, Vesle and  	Toul-Verdun Sectors
+* St. Mihiel Offensive Campaign
+* Aisne-Marne Defensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
 |- bgcolor="#FBFDD5"
 |colspan=3|
@@ Line 53: / Line 57: @@
 | rowspan=2| [[2d Aero Squadron]]
 | December 1, 1915
-| Formed as: 1st Company, 2d Aero Squadron<br>Pre-WWI service in the Philippines<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron A, [[Kelly Field]], Texas, July 1918<br>Demobilized: November 18, 1918
+| Formed as: 1st Company, 2d Aero Squadron<br>Pre-WWI service in the Philippines<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron A, [[Kelly Field]], Texas, July 1918<BR>Demobilized: November 18, 1918
 |- bgcolor="#FBFDD5"
 |colspan=3|
@@ Line 66: / Line 70: @@
 | rowspan=2| [[3d Aero Squadron]]
 | November 1, 1916
-| Pre-WWI service in Texas<ref name="AU"/><br><br>Instructional flying squadron<br>Re-designated: Squadron A, [[Post Field]], Oklahoma, July 1918<br>Demobilized: January 2, 1919
+| Pre-WWI service in Texas<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron A, [[Post Field]], Oklahoma, July 1918<BR>Demobilized: January 2, 1919
 |- bgcolor="#FBFDD5"
 |colspan=3|
@@ Line 80: / Line 84: @@
 | rowspan=2| [[4th Aero Squadron]]
 | May 5, 1917
-| Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron B, Post Field, Oklahoma, July 1918<br>Demobilized: January 2, 1919
+| Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron B, Post Field, Oklahoma, July 1918<BR>Demobilized: January 2, 1919
 |- bgcolor="#FBFDD5"
 |colspan=3|
@@ Line 94: / Line 98: @@
 | rowspan=2| [[5th Aero Squadron]]
 | May 5, 1917
-| Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron A, [[Souther Field]], Georgia, July 1918<br>Demobilized: November 11, 1918
+| Initially formed as an un-designated unit, December 1916 when the United States Army established seven air squadrons<ref name="AU"/><br>Instructional flying squadron<br>Re-designated: Squadron A, [[Souther Field]], Georgia, July 1918<BR>Demobilized: November 11, 1918
 |- bgcolor="#FBFDD5"
 |colspan=3|
@@ Line 126: / Line 130: @@
 | rowspan=2| [[8th Aero Squadron]]
 | June 21, 1917
-| AEF: December 8, 1917 – May 3, 1919<br>Corps Observation Squadron<br>Combat with IV and VI Corps Observation Groups
+| AEF: December 8, 1917 – May 3, 1919<br>Corps Observation Squadron<br>Combat with IV and VI Corps Observation Groups<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul Sector
+* St. Mihiel Offensive Campaign
+* Aisne-Marne Defensive Campaign<ref name="USWD"/>
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 138: / Line 145: @@
 | rowspan=2| [[9th Aero Squadron]]
 | June 14, 1917
-| AEF: October 28, 1917 – June 8, 1919<br>Night Observation Squadron<br>Combat with First Army Observation Group
+| AEF: October 28, 1917 – June 8, 1919<br>Night Observation Squadron<br>Combat with First Army Observation Group<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul Sector
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 151: / Line 161: @@
 | 10th Aero Squadron
 | May 31, 1917
-| AEF:  December 26, 1917 – May 1919 <br>Service Support Squadron<br>3d Aviation Instruction Center<br>[[Issoudun Aerodrome]]<br>Demobilized: June 1919<ref name="Gorrell2">Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 2, 9th and 10th Aero Squadrons</ref>
+| AEF:  December 26, 1917 – May 1919 <br>Service Support Squadron<br>3d Aviation Instruction Center<br>[[Issoudun Aerodrome]]
+Demobilized: June 1919<ref name="Gorrell2">Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, Volume 2, 9th and 10th Aero Squadrons</ref>
 |-
 |colspan=3|
@@ Line 158: / Line 169: @@
 | rowspan=2| [[11th Aero Squadron]]
 | June 26, 1917
-| AEF: January 1, 1918 – May 1, 1919<br>Day Bombardment Squadron<br>Combat with 1st Day Bombardment Group
+| AEF: January 1, 1918 – May 1, 1919<br>Day Bombardment Squadron<br>Combat with 1st Day Bombardment Group<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul Sector
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 172: / Line 186: @@
 | rowspan=2| [[12th Aero Squadron]]
 | June 2, 1917
-| AEF: January 16, 1918 – June 17, 1919<br>Corps Observation Squadron<br>Combat with I Corps Observation Group
+| AEF: January 16, 1918 – June 17, 1919<br>Corps Observation Squadron<br>Combat with I Corps Observation Group<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul, Baccarat (Luneville), Aisne-Marne, and Vesle Sectors
+* Aisne-Marne Offensive Campaign
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 184: / Line 202: @@
 | rowspan=2| [[13th Aero Squadron]]
 | June 14, 1917
-| AEF: December 26, 1917 – March 13, 1919<br>Pursuit Squadron<br>Combat with 2d Pursuit Group<br>Demobilized on March 29, 1919
+| AEF: December 26, 1917 – March 13, 1919<br>Pursuit Squadron<br>Combat with 2d Pursuit Group<<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul and Verdun Sectors
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
+Demobilized on 29 March 1919
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 196: / Line 218: @@
 | rowspan=2| [[14th Aero Squadron]]
 | May 9, 1917
-| Formed as: 1st Aviation School Squadron<br>Instructional flying squadron<br>Re-designated: Squadron A, [[Rockwell Field]], California, July 1918<br>Demobilized: November 23, 1918
+| Formed as: 1st Aviation School Squadron<br>Instructional flying squadron<br>Re-designated: Squadron A, [[Rockwell Field]], California, July 1918<BR>Demobilized: November 23, 1918
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 208: / Line 230: @@
 | rowspan=2| [[15th Aero Squadron]]
 | May 9, 1917
-| Formed as 2d Aviation School Squadron<br>Training Squadron: [[Hazelhurst Field]], New York<br>Demobilized: September 18, 1919
+| Formed as 2d Aviation School Squadron<br>Training Squadron: [[Hazelhurst Field]], New York<BR>Demobilized: September 18, 1919
 |- bgcolor="#E9E9FD"
 |colspan=3|
@@ Line 220: / Line 242: @@
 | rowspan=2| [[16th Aero Squadron]]
 | May 9, 1917
-| Formed as: 3d Aviation School Squadron<br>AEF: January 8, 1918 – May 7, 1919<br>Construction Squadron<br>Demobilized: May 22, 1919
+| Formed as: 3d Aviation School Squadron<br>AEF: January 8, 1918 – May 7, 1919<br>Construction Squadron<BR>Demobilized: May 22, 1919
 |- bgcolor="#E9E9FD"
 |colspan=3|
@@ Line 231: / Line 253: @@
 | rowspan=2| [[17th Aero Squadron]]
 | June 16, 1917
-| AEF: August 4, 1917 – March 20, 1919<br>Pursuit Squadron (Primarily assigned to [[Royal Air Force]])<br>Demobilized: April 1, 1919
+| AEF: August 4, 1917 – March 20, 1919<br>Pursuit Squadron (Primarily assigned to [[Royal Air Force]])<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the St. Quentin-Arras, Amiens-Arras, and Nieuport-Ypres Sector (Belgium)
+* Somme Defensive Campaign
+* Somme Offensive Campaign<ref name="USWD"/>
+Demobilized: April 1, 1919
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 245: / Line 271: @@
 | rowspan=2| [[18th Aero Squadron]]
 | August 1917
-| Instructional flying squadron<br>Re-designated: Squadron B, [[Rockwell Field]], California, July 1918<br>Demobilized: November 1918 <ref name="CMA"/>
+| Instructional flying squadron<br>Re-designated: Squadron B, [[Rockwell Field]], California, July 1918<BR>Demobilized: November 1918 <ref name="CMA"/>
 |- bgcolor="#E9E9FD"
 |colspan=3|
@@ Line 256: / Line 282: @@
 | rowspan=2| [[19th Aero Squadron]]
 | June 14, 1917
-| Formed as 14th Aero Squadron<br>AEF:  January 1, 1918 – April 5, 1919<br>Day Bombardment Training Squadron<br>Demobilized: April 14, 1919
+| Formed as 14th Aero Squadron<br>AEF:  January 1, 1918 – April 5, 1919<br>Assigned to Seventh Aviation Instruction Center<BR>Demobilized: April 14, 1919
 |- bgcolor="#E9E9FD"
 |colspan=3|
@@ Line 267: / Line 293: @@
 | rowspan=2| [[20th Aero Squadron]]
 | June 26, 1917
-| AEF: December 31, 1917– May 2, 1919<br>Day Bombardment Squadron<br>Combat with 1st Day Bombardment Group
+| AEF: December 31, 1917– May 2, 1919<br>Day Bombardment Squadron<br>Combat with 1st Day Bombardment Group<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Toul Sector
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 278: / Line 307: @@
 | rowspan=2| [[21st Aero Squadron]]
 | June 13, 1917
-| AEF: January 23, 1918 – April 6, 1919<br>Instructional flying squadron<br>Demobilized: April 14, 1919
+| AEF: January 23, 1918 – April 6, 1919<br>AEF: Flying School Squadron, Third Air Instructional Center,Issoudun Aerodrome, France<BR>Demobilized: April 14, 1919
 |- bgcolor="#E9E9FD"
 |colspan=3|
@@ Line 290: / Line 319: @@
 | rowspan=2| [[22d Aero Squadron]]
 | June 20, 1917
-| AEF: February 16, 1918 – June 15, 1919<br>Pursuit Squadron<br>Combat with 2d Pursuit Group<br>Demobilized: June 17, 1919
+| AEF: February 16, 1918 – June 15, 1919<br>Pursuit Squadron<br>Combat with 2d Pursuit Group<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* Patrols in the Amiens and Toul Sectors
+* Somme Defensive Campaign
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
+Demobilized: June 17, 1919
 |- bgcolor="#CEEEE8E"
 |colspan=3|
@@ Line 302: / Line 336: @@
 | rowspan=2|  [[23d Aero Squadron]]
 | June 23, 1917
-| Formed as 18th Aero Squadron<br>AEF: July 25, 1918 – March 8, 1919<br>Served as Repair Squadron<br>Demobilized: March 22, 1919
+| Formed as 18th Aero Squadron<br>AEF: July 25, 1918 – March 8, 1919<br>Primarily trained in england as an aircraft maintenance squadron, did not see combat.<BR>Demobilized: March 22, 1919
 |- bgcolor="#E9E9FD"
 |colspan=3|
@@ Line 313: / Line 347: @@
 | rowspan=2| [[24th Aero Squadron]]
 | May 1, 1917
-| AEF: January 24, 1918 – August 2, 1919<br>Army Observation Squadron<br>Combat with First Army Observation Group<br>Demobilized: October 1, 1919
+| AEF: January 24, 1918 – August 2, 1919<br>Army Observation Squadron<br>Combat with First Army Observation Group<br>Demobilized: October 1, 1919<ref name="USWD">United States War Department (1920), Battle Participation of Organizations of the American Expeditionary Forces in France, Belgium and Italy, 1917–1919, Washington, Government Printing Office, 1920</ref>
+* St. Mihiel Offensive Campaign
+* Meuse-Argonne Offensive Campaign<ref name="USWD"/>
+Demobilized on 1 October 1919
 |- bgcolor="#CEEEE8E"
 |colspan=3|

Years in aviation:	1914 1915 1916 1917 1918 1919 1920
Centuries:	19th century · 20th century · 21st century
Decades:	1880s 1890s 1900s 1910s 1920s 1930s 1940s
Years:	1914 1915 1916 1917 1918 1919 1920

v t e Aviation in World War I
People and aircraft	Commanders Aces (accuracy) Aircraft of the Entente Powers Aircraft of the Central Powers Zeppelins
Campaigns and battles	Strategic bombing German Cuxhaven Bombing of cities Aerial reconnaissance Fokker Scourge Zonguldak Flight over Vienna Bloody April Battles
Entente Powers air services	British air services Royal Flying Corps Royal Naval Air Service Royal Air Force Australian Flying Corps Canadian Air Force (1918–1920) French Air Service Imperial Russian Air Service Royal Italian Air Corps Romanian Air Corps United States Army Air Service Greek air services Army Air Service Naval Air Service Japanese air services Imperial Japanese Army Air Service Imperial Japanese Navy Air Service
Central Powers air services	Imperial German Air Service Austro-Hungarian Imperial and Royal Aviation Troops Ottoman Aviation Squadrons Bulgarian Army Aeroplane Section

v t e Flying aces
World War I (accuracy)	Argentina Australia Austrian aces Austro-Hungary Belgium British Empire Canada Czech aces Croatian aces Ecuador Estonian aces Fiji France German Empire Hungary Italy India Latvia New Zealand Polish aces Romania Russian Empire Serbia Slovakian aces South Africa Swaziland Switzerland United States
World War II (accuracy)	By country Australia Austria Belgium Bulgaria Canada China Croatia Czechoslovakia Denmark Finland France (Vichy France) Germany (Jet aces, night fighter) Hungary Italy Ireland Japan New Zealand Norway Poland Romania Slovakia South Africa Southern Rhodesia Soviet Union Spain United Kingdom United States
Other wars	Spanish Civil War Korean War Vietnam War
General	Canada Egypt Greece Iran Israel Russia Syria
Related	List of aviators who became ace in a day