Constituted 24 May 1917 as the 1st Expeditionary Division.
Organized 8 June 1917 at New York, New York.
Redesignated 6 July as the 1st Division.
Reorganized and redesignated 1 August 1942 as the 1st Infantry Division.
COMMANDERS IN COMBAT
Major General Terry de la Mesa Allen - Assumed command June 1942
Major General Clarence R. Huebner - Assumed command July 1943
Major General Cliff Andrus - Assumed command December 1944
ORDER OF BATTLE
Headquarters, 1st Infantry Division
Headquarters Company, 1st Infantry Division
1st Cavalry Reconnaissance Troop
1st Engineer Combat Battalion
16th Infantry Regiment
18th Infantry Regiment
26th Infantry Regiment
Headquarters and Headquarters Battery, Division Artillery
5th Field Artillery Battalion
7th Field Artillery Battalion
32nd Field Artillery Battalion
33rd Field Artillery Battalion
Headquarters, Special Troops
1st Medical Battalion
701st Ordnance Light Maintenance Company
1st Signal Company
1st Quartermaster Company
WORLD WAR II CAMPAIGN PARTICIPATION
Algeria-French Morocco (with arrowhead), Tunisia, Sicily (with arrowhead), Normandy (with arrowhead), Northern France, Rhineland, Ardennes-Alsace, Central Europe