Several merchant ships have been named Emperor, or a variation of Emperor. (originally named Leopard), Canadian (later U.S.) schooner, U.S. Official No. 8500. Wrecked on Lake Ontario, near Oswego, New York, in November 1870. Emperor, British steam sloop. Wrecked at Fécamp, Pas-de-Calais, France on 9 October 1857. , Canadian steamer, bulk freighter, Official No. 126654. Wrecked on Isle Royale in Lake Superior on 4 June 1947.

See also (originally named Canadian Warrior), Canadian propeller, package freighter, Official No. 140960. Wrecked at Ballantyne Cove, Cape George, Nova Scotia, on 7 December 1926. (originally Canadian Signaller, later Skjoldheim and Polyana), Canadian (later Norwegian) propeller, package freighter. Torpedoed by German submarine in the Atlantic Ocean on 25 April 1941. (originally Canadian Sower), Canadian (later Japanese) propeller, package freighter, Official No. 141487. Torpedoed by an American submarine near Po-hai on 10 February 1945. (originally Canadian Trader, later Gilda Scuderi), Canadian (later Italian and U.S.) propeller, package freighter, Official No. 141376. Lost in November 1928, while travelling from Seattle, Washington, to Kobe, Japan. (originally Canadian Adventurer, later Nootka), Canadian (later Peruvian) propeller, package freighter, Official No. 141486. Scrapped in Peru in 1960. (originally Canadian Sailor, later Nichiyei Maru and Nitei Maru), Canadian (later Japanese) propeller, package freighter, Official No. 141377. Foundered in the Yellow Sea on 11 October 1942.

References