Constituted as Southwest Air District on 19 Oct 1 940. Activated on 18 Dec 1940. Redesignated Fourth AF early in 1941. Provided air defense for the western US until 1943, and at the same time trained new organizations. Later, was engaged primarily in training replacements for combat units. Assigned to Air Defense Command in Mar 1946 and to Continental Air Command in Dec 1948, being concerned chiefly with air defense until 1949 and with reserve and national guard activities thereafter.
Commands. IV Bomber: 1941-1944. IV Fighter: 1941-1944. IV Ground Air Support: 1941-1942.
Stations. March Field, Calif, 18 Dec 1940; Riverside, Calif, 16 Jan 1941; Hamilton Field, Calif, 7 Dec 1941; San Francisco, Calif, 5 Jan 1942; Hamilton Field, Calf, 19 Jun 1946-.
Commanders. Maj Gen Jacob E Fickel, 18 Dec 1940; Maj Gen George C Kenney, 2 Apr 1942; Maj Gen Barney McK Giles, 22 Jul 1942; Maj Gen William E Kepner, 18 Mar 1943; Maj Gen William E Lynd, 8 Jul 1943; Maj Gen James E Parker, 14 Jul 1944; Brig Gen Edward M Morris, 19 May 1945; Maj Gen Willis H Hale, 6 Jul 1945; Brig Gen Ned Schramm, 1 Nov 1947; Maj Gen John E Upston, 20 Jan 1948; Maj Gen Alvan C Kincaid, c. Sep 1950; Maj Gen William E Hall, 29 Jan 1951; Maj Gen Alfred A Kessler Jr, 8 Sep 1952; Maj Gen Robert B Landry, 4 Feb 1955-.
Campaigns. American Theater.
Insigne. Shield: Azure, a white star, charged with a red disc, all within a white winged annulet upheld by four golden yellow rays, radiating from base point, all within a border of the last. (Approved 1 Sep 1943. This insigne was superseded by another on 21 Mar 1957.)
Data from Air Force Combat Units of World War II By Maurer, Maurer, Published 1986