USS Prince William (CVE-31) (originally AVG-31, later ACV-31), ex-MC Hull 242, was laid down by the Seattle-Tacoma Shipbuilding Corporation of Tacoma, Washington, 18 May 1942 as AVG-31; redesignated ACV-31 on 20 August 1942; launched 23 August 1942; sponsored by Mrs. Paul Foley; and commissioned 9 April 1943, Captain Herbert E. Regan in command.