1. Key Events.
Activated       Camp Campbell, Kentucky                    15 Mar 43
Staged           Camp Myles Standish, Massachusetts     21 Jan 45
Departed        Boston Port of Embarkation                    6 Feb 45
Arrived           France                                                   17 Feb 45
Entered          Germany                                                 3 Apr 45
Arrived           New York Port of Embarkation             6 Aug 45
Arrived          Camp Cooke, California                        13 Aug 45
Transferred    Camp Hood, Texas                                 8 Mar 46
Inactivated     Camp Hood, Texas                                 2 Apr 46

2. Organization, 1944-45.
9th Tank Battalion
20th Tank Battalion
27th Tank Battalion
8th Armored Infantry Battalion
65th Armored Infantry Battalion
70th Armored Infantry Battalion
HHB, Division Artillery
412th Armored Field Artillery Battalion
413th Armored Field Artillery Battalion
414th Armored Field Artillery Battalion
33rd Cavalry Reconnaissance Squadron, Mechanized
520th CIC Detachment
HHC, 20th Armored Division
HHC, Combat Command A
HHC, Combat Command B
Hqs, Reserve Command
HHC, Division Trains
220th Medical Battalion, Armored
138th Armored Ordnance Maintenance Battalion
468th AAA Auto-Weapons Battalion (attached 4 Apr-3 Jul 45)*

3. Division Commanders
Major General Stephen G. Henry    February 1943
Major General Roderick R. Allen   October 1943
Major General Orlando Ward         September 1944
Major General John W. Leonard    September 1944

4.  Overseas Wartime Assignments
Fifteenth Army               29 Jan 45
XXII Corps                     3 Apr 45
First Army (attached)      7 Apr 45
First Army                    12 Apr 45
III Corps                       19 Apr 45
XV Corps                     23 Apr 45

5. Campaign
Central Europe

SOURCE: Stanton, Shelby L., Order of Battle, U.S. Army, World War II.
Novato: Presidio Press, 1984.

*Other units believed to be attached, period (s) unknown, were HHC
6th Army Group, 366th QM Truck Company and 660th QM Truck Company.