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Fleet | From | Until | Toronto, Hamilton & Buffalo Navigation Company - Ashtabula, Ohio | | 1936 |
Nicholson-Universal Steamship Company - Detroit, Michigan | | 1942 |
Roen Steamship Company - Sturgeon Bay, Wisconsin | | 1973 |
Eder Barge & towing Company - Milwaukee, Wisconsin | | 1978 |
Bultema Dock & Dredge Company - Muskegon, Michigan | | 1980 |
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