High Quality Content by WIKIPEDIA articles! MS Kungsholm was a passenger liner owned and operated by the Swedish American Line from 1928 to 1941 on transatlantic services from Gothenburg to New York as well as crusing out of New York. It was built at the Blohm & Voss shipyard in Hamburg, Germany. In 1942 the ship was requisitioned by the United States Government, who placed it United States Lines flag, and renamed it USAT John Ericsson (NY-307). Its first cruise was transporting USMC troops from San Francisco to New Zealand.