The second USS Alcor, AK-259, was a Greenville Victory-class cargo ship for the US Navy. She was laid down under a Maritime Commission contract (MCV hull 101) on 28 February 1944 at Portland, Oregon, by the Oregon Shipbuilding Corp. She was launched on 29 April as SS Rockland Victory, sponsored by Mrs. Thomas M. Jones, a citizen of Portland. She was operated for the Maritime Commission by a succession of contractors between 1944 and 1950, acquired by the Navy on 10 July 1951, converted for naval service by Ira S. Bushy and Sons, Inc., of Brooklyn, New York, and commissioned on 1 March 1952, Comdr. Harry A. Long in command.