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| 1921 | | | Franklin. | | Owned by: | Galena Navigation Co., 1921, United States | | Built by: | Staten Island Ship Building Co., 1921, United States, New York, Mariners' Harbor |
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| | | Canadian Pathfinder. | | Owned by: | Casper, Edgar & Co. (Holmwood Steamship Co.), United Kingdom, West Hartlepool | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Canadian Pathfinder. | | Owned by: | Continental - Indies Steam Ship Co., 1932, United Kingdom, England, Barbadas, Bridgetown | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Canadian Pathfinder. | | Owned by: | Margaree Ship Building Co., 1934, United Kingdom, Barbadas, Bridgetown | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Canadian Pathfinder. | | Owned by: | Paterson Steamship Ltd., 1925, Canada, Ontario, Fort William | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Canadian Pathfinder. | | Owned by: | A/B Arafart, 1936, United Kingdom, Sweden, Stockholm | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Canadian Pathfinder. | | Owned by: | Mathiasen Steam Shipping, 1934, United States, New York, New York | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Franklin. | | Owned by: | Texas Co., United States | | Built by: | Staten Island Ship Building Co., 1921, United States, New York, Mariners' Harbor |
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| | | Delphine. | | Owned by: | Anna Dodge Dillman., 1921, United States | | Built by: | Great Lakes Engineering Works., 1921, United States, Michigan, Ecorse |
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| | | Delphine. | | Owned by: | U.S. Navy, United States | | Built by: | Great Lakes Engineering Works., 1921, United States, Michigan, Ecorse |
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| | | Delphine. | | Owned by: | Lundeberg Maryland Seamanship School., United States | | Built by: | Great Lakes Engineering Works., 1921, United States, Michigan, Ecorse |
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| | | Franklin. | | Owned by: | Cleveland Tankers, Inc., United States | | Built by: | Staten Island Ship Building Co., 1921, United States, New York, Mariners' Harbor |
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| | | Canadian Pathfinder. | | Owned by: | Canadian Government., 1921, Canada, Ontario, Toronto | | Built by: | Dominion Ship Building Co., 1921, Canada, Ontario, Toronto |
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| | | Delphine. | | Owned by: | Horace E. Dodge., United States | | Built by: | Great Lakes Engineering Works., 1921, United States, Michigan, Ecorse |
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| | | Franklin. | | Owned by: | U. S. Department of Commerce, United States | | Built by: | Staten Island Ship Building Co., 1921, United States, New York, Mariners' Harbor |
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| 1922 | | | N. H. Botsford. | | Owned by: | Canada Steamship Lines, Ltd., 1926, Canada, Quebec, Montreal | | Built by: | Fraser, Brace, Ltd., 1922, Canada, Quebec, Three Rivers |
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| | | Kittanning. | | Owned by: | D.O. Lockhart., 1931, United States, Michigan, Detroit | | Built by: | New Baltimore Ship Building and Repair Co., 1922, United States, New York, New Baltimore |
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| | | Detroit. | | Owned by: | J.C. Dahmer., 1922, United States, Michigan, Detroit | | Built by: | Defoe., 1922, United States, Michigan, Bay City |
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| | | N. H. Botsford. | | Owned by: | Elder Dempster Lines, Ltd., 1945, United Kingdom, England, Lancashire, Liverpool | | Built by: | Fraser, Brace, Ltd., 1922, Canada, Quebec, Three Rivers |
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| | | Kittanning. | | Owned by: | M. Lockhart., United States, Michigan, Detroit, last owner | | Built by: | New Baltimore Ship Building and Repair Co., 1922, United States, New York, New Baltimore |
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| | | Detroit. | | Owned by: | Arnold Transit Co., United States, Michigan, Mackinac Island | | Built by: | Defoe., 1922, United States, Michigan, Bay City |
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| | | Fordonian. | | Owned by: | Canada Steamship Lines, United Kingdom | | Built by: | Ansaldo San Giorgio, 1922, United Kingdom, Italy |
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| | | Detroit. | | Owned by: | L. Seeberger., United States, Minnesota, Duluth | | Built by: | Defoe., 1922, United States, Michigan, Bay City |
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| | | Kittanning. | | Owned by: | Manhattan State Hospital., 1922-1931, United States, New York | | Built by: | New Baltimore Ship Building and Repair Co., 1922, United States, New York, New Baltimore |
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| | | Detroit. | | Owned by: | A. Fransee., United States, Wisconsin, Milwaukee | | Built by: | Defoe., 1922, United States, Michigan, Bay City |
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| | | N. H. Botsford. | | Owned by: | Hall Corp., Ltd., 1922, Canada, Quebec, Montreal | | Built by: | Fraser, Brace, Ltd., 1922, Canada, Quebec, Three Rivers |
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