 "Patrick B. Whalen" was laid down on 29 January 1945, under a Maritime Commission (MARCOM) contract, MC hull 2404, by J.A.Jones Construction, Brunswick, Georgia; she was sponsored by Mrs. Leo W. Regan, and launched on 15 March 1945.She was allocated to the Isbrandtsen Steamship Co. Inc., on 30 March 1945.