They may have been a source of personnel, but by 1945, the Air Technical Service Command had 14 Air Technical Service Commands in the U. S. to train them.
Atlantic Overseas ATSC HQ at Newark Army Air Field, N. J.
Fairfield ATSC HQ at Patterson Field, Ohio
Miami ATSC HQ at Miami, Fla.
Middletown ATSC HQ at Olmstead Field, Pa.
Mobile ATSC HQ at Brookley Field, Ala.
Ogden ATSC HQ at Hill Field, Utah
Oklahoma City ATSC HQ at Tinker Field, Okla.
Pacific Overseas ATSC HQ at Oakland, Cal.
Rome ATSC HQ at Rome Army Air Field, N. Y.
Sacramento ATSC HQ at McClellan Field, Cal.
San Antonio ATSC HQ at Kelly Field, Tex.
San Bernardino ATSC HQ at San Bernardino Army Air Field, Cal.
Spokane ATSC HQ at Spokane Army Air Field, Wash.
Warner Robins ATSC HQ at Robins Field, Ga.
Most of these (11) were perminent Air Depots which dated from pre-war to 1942. These were the training stations for the Air Depot Groups sent to all theaters.