 "Errol" (AG-133) was built in 1944 by Wheeler Shipbuilding Corp., Whitestone, Long Island, New York, for the U.S. Army as USAT "FS-274"; acquired by the Navy 3 April 1947; and commissioned 9 July 1947, Lieutenant R. Q. June in command.She was reclassified "AKL-4" on 31 March 1949.Commissioned at Guam, "Errol" throughout her naval service carried passengers and cargo among American islands and those of the Trust Territory of the Pacific, calling at Guam, Saipan, Tinian, Truk, the Palau Islands, Ulithi, Chichi Jima, Kwajalein, Pagan Island, Agrihan, and smaller islands in the Caroline Islands.