4th Armored Division Organization

1941

4th Armored Brigade HHC
   35th Armored Regiment (Light)
   37th Armored Regiment (Light)
   80th Armored Regiment (Medium)
   66th Field Artillery Regiment (Armored)
84th Reconnaissance Battalion (Armored)   
22nd Field Artillery Battalion (Armored)
51st Infantry Regiment (Armored)

Headquarters
   Headquarters Company, 3rd Armored Division
   24th Engineer Battalion (Armored)
   46th Medical Battalion (Armored)
   18th Quartermaster Battalion (Armored)
   144th Signal Company (Armored)
   20th Ordnance Battalion (Armored)
   

1944/1945

8th Tank Battalion
35th Tank Battalion
37th Tank Battalion
10th Armored Infantry Battalion
51st Armored Infantry Battalion
53rd Armored Infantry Battalion
22nd Armored Field Artillery Battalion
66th Armored Field Artillery Battalion
94th Armored Field Artillery Battalion
144th Signal Company
24th Armored Engineer Battalion
25th Armored Reconnaissance Squadron 

Headquarters
Headquarters Company, 4th Armored Division
Service Company, 4th Armored Division
Division Trains
   HHC
   Supply Battalion
   46th Armored Medical Battalion
504th Intelligence Corps


704th Tank Destroyer Battalion (attached 22 April  1944 - 9 May 1945)
811th Tank Destroyer Battalion(M10, M36) (attached 25 April 1944 ?17 December 1944, 2 January 1945 ? 9 May 1945)     
803rd Tank Destroyer Battalion(M10, M36) (attached 3 March 1945 - 11 March 1945)
489th AAA Auto-Weapons Battalion (attached 19 June 1944 - 19 May 1945)



4th Armored Division Overseas Assignments:

First Army  18 December 1943

VIII Corps  22 January 1944

XX Corps  9 March 1944

XV Corps  20 April 1944

VIII Corps  15 July 1944

XII Corps  13 August 1944

III Corps  19 December 1944

VIII Corps  2 January 1945

XII Corps  12 January 1945

VIII Corps  4 April 1945

X Corps  9 April 1945

VIII Corps  17 April 1945

XII Corps  30 April 1945


Commanders:

MG Henry W. Baird - April 1941                     
MG John S. Wood May - 1942         
MG Hugh J. Gaffey - December 1944
MG William Hoge - March 1945
BG Doyle O. Hickey  - March 1945


PRIMARY SOURCES:

"Order of Battle U.S. Army, World War II" by Shelby L. Stanton