Lineage. Constituted as 1 Air Transport Squadron (Mobile) on 13 Mar 1944. Activated on 23 Mar 1944. Inactivated on 25 Mar 1946. Disbanded on 8 Oct 1948. Reconstituted, and redesignated as 1 Air Transport Squadron, Medium, on 1 Sep 1953. Activated on 18 Nov 1953. Redesignated as: 1 Air