reorganized and Federally recognized 2 August 1921 as Troop B, 1st Louisiana Cavalry
redesignated 24 April 1922 as Troop B 108th Cavalry), redesignated Troop F, 10 August 1922
Troop C, 108th Cavalry at Franklinton, Louisiana (organized and federally recognized 17 December 1921), redesignated Troop G, 21 June 1922. Reorganized 15 March 1929 as a three-squadron regiment with elements at locations as follows:
Regimental Headquarters reorganized at Hinesville, Georgia.
1st Squadron reorganized with Headquarters and Troop B at Hinesville and Troop A at Savannah, Georgia.
2d Squadron reorganized with Headquarters and Troop E at Bogalusa and Troop F at Franklinton, Louisiana.
3d Squadron organized and Federally recognized 15 March 1929 with Headquarters and Troop I at New Orleans and Troop K at Jennings, Louisiana.
Relieved from the 23rd Cavalry Division (United States) and broken up in October 1940 with elements consolidated, converted and redesignated as follows:
Headquarters Troop at New Orleans redesignated 6 October 1940 as Headquarters Battery, 105th Separate Battalion, Coast Artillery Antiaircraft).
Machine Gun Troop at Atlanta redesignated 12 October 1940 as Battery C, 101st Separate Battalion, Coast Artillery (Antiaircraft).
Headquarters, First Squadron at Hinesville redesignated 12 October 1940 as Headquarters, 101st Separate Battalion, Coast Artillery (Antiaircraft).
Troop A at Savannah redesignated 12 October 1940 as Battery A, 101st Separate Battalion, Coast Artillery (Antiaircraft).
Troop B at Hinesville redesignated 12 October 1940 as Battery B, 101st Separate Battalion, Coast Artillery (Antiaircraft).
Headquarters, 2d Squadron at New Orleans consolidated with Headquarters, 23d Cavalry Division (organized and federally recognized 18 October 1939) and Headquarters, 55th Cavalry Brigade (organized and Federally recognized 20 May 1936), reorganized and redesignated 6 October 1940 as Headquarters, 105th Separate Battalion, Coast Artillery (Antiaircraft).
Troop E at Bogalusa redesignated 6 October 1940 as Battery C, 105th Separate Battalion, Coast Artillery (Antiaircraft).
Troop F at Franklinton redesignated 6 October 1940 as Battery D, 105th Separate Battalion, Coast Artillery (Antiaircraft).
Headquarters, 3d Squadron at New Orleans consolidated 6 October 1940 with Head- quarters, 105th Separate Battalion, Coast Artillery (Antiaircraft).
Troop I at New Orleans redesignated 6 October 1940 as Battery A, 105th Separate Battalion, Coast Artillery (Antiaircraft).
Troop K at Jennings redesignated 6 October 1940 as Antitank Company, 156th Infantry Medical Department Detachment at New Orleans reorganized 12 October 1940 to form Medical Department Detachments, 101st and 105th Separate Battalions, Coast Artillery (Antiaircraft).