The ship was turned over to WSA for duty in Army Transport Service, who rebuilt her to 12,521 gross tons. On 12 February 1948 USAT "General M. B. Stewart" arrived in Fremantle, Western Australia with 857 displaced persons from Europe. This voyage was the second of almost 150 "Fifth Fleet" voyages by some 40 ships bringing refugees of World War II to Australia. "General M. B. Stewart" made four more such trips herself: arriving in Melbourne (from Naples) on 13 April 1949 with 816 refugees; in Adelaide on 20 July 1949 with 816; in Melbourne 30 January 1950 with 1,262; and finally arriving in Sydney on 17 April 1950 with 1,292 displaced persons. The transport was reacquired by the Navy 1 March 1950 for use by MSTS. During the rest of 1950 she made two voyages to the Far East, carrying U.S. troops to Japan and Korea. Between 1950 and 1955 "General M. B. Stewart" also sailed from Bremerhaven, Germany, to New York and Halifax, Nova Scotia, transporting thousands of European refugees to the United States and Canada under the International Refugee Organization. In 1953 she made another voyage to Korea and transported home veteran troops before returning to her regular Bremerhaven-New York schedule. She maintained this pattern until being placed in Reduced Operational Status at New York 29 April 1955. She was finally transferred back to the Maritime Administration 21 May 1958 and was placed in the National Defense Reserve Fleet, Hudson River, New York where she remained until 1967. At that time, she was sold to Albany River Transport Inc. of New York and rebuilt as a cargo ship by Todd Shipyard in Brooklyn. Renamed SS "Albany" when she entered commercial service in December 1968, the 10,530 gross ton cargo ship was sold to Avondale Shipyards, Inc. who converted her into Drill Ship "Mission Viking" for Mission Drilling & Exploration Corporation (later Mission Viking, Inc.) of New Orleans. In 1978, "Mission Viking" was central to a dispute between Mission Viking, Inc. and the Occupational Safety and Health Administration (OSHA). OSHA inspectors cited two workers aboard the vessel while it was docked at Bender Shipbuilding and Repair Co., Inc. in Mobile, Alabama. Because of the nature of the work involved on the vessel, OSHA believed it had the authority to enforce its regulations aboard the barge. The owners, however, insisted that because the vessel was licensed with the Coast Guard and the work performed was done by crew members, that the Coast Guard, and not OSHA, had authority over the vessel‘s operations.