Constituted 24 June 1921 as the 104th Division.
Organized 7 October 1921 with headquarters at Salt Lake City, Utah.
Ordered into active military service 15 September 1942, and reorganized at Camp Adair, Oregon as the 104th Infantry Division.
Inactivated 20 December 1945 at Camp San Luis Obispo, California.
Activated 1 December 1946 with headquarters at Portland, Oregon.
COMMANDER IN COMBAT
Major General Terry de la Mesa Allen - Assumed command October 1943
ORDER OF BATTLE
Headquarters, 104th Infantry Division
Headquarters Company, 104th Infantry Division
104th Cavalry Reconnaissance Troop
329th Engineer Combat Battalion
413th Infantry Regiment
414th Infantry Regiment
415th Infantry Regiment
Headquarters and Headquarters Battery, Division Artillery
385th Field Artillery Battalion
386th Infantry Battalion
387th Field Artillery Battalion
929th Field Artillery Battalion
Headquarters, Special Troops
329th Medical Battalion
804th Ordnance Light Maintenance Company
104th Signal Company
104th Quartermaster Company
WORLD WAR II CAMPAIGN PARTICIPATION
Northern France, Rhineland, Central Europe