01/19/1941
https://www.presidency.ucsb.edu...
"This Order shall become effective on March 9, 1942, and shall remain in force during the continuance of the present war and for six months after the termination thereof."
"The Secretary of War is authorized and directed to prescribe such functions, duties, and powers of the commanders of the various forces and commands of the Army of the United States and the agencies o..."
"The functions, duties, and powers of the chiefs of the following-named branches of the Army of the United States are transferred to the Commanding General, Army Ground Forces: Infantry, Cavalry, Field..."
"There is hereby established in the War Department, under the supervision and direction of the Secretary of War, a corps of uniformed civilian employees to be known as the Army Specialist Corps."