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| Fleet | From | Until | | Interstate Steamship Company - Cleveland, Ohio (Jones & Laughlin Steel sub) | 1910/08 | 1911/03 |
| Jones & Laughlin Steel Corporation | | 1952 |
| Wilson Transit Company - Cleveland, Ohio | | 1964 |
| Hindman Transportation Company Ltd. - Owen Sound, Ontario | 1964 | 1978 |
| Quebec & Ontario Transportation Company - Thorold, Ontario | 1978 | 1981 |
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