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| Fleet | From | Until | | C.W. Ephlicke - Chicago, Illinois | | 1900 |
| Detroit Sulphite Transportation Company - Detroit, Michigan | | 1939 |
| Pittsburgh Steamship Company - Duluth, Minnesota | 1948/08 | 1951/07 |
| Driftwood Lands & Timber Ltd. - Sault Ste. Marie, Ontario | | 1955 |
| Hindman Transportation Company Ltd. - Owen Sound, Ontario | 1964 | 1978 |
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