| Owner | Manager | From | Until | | Cleveland Steamship Company - Cleveland, Ohio, USA | John Mitchell - USA | 1899/10 | 1915/12/30 |
| Interlake Steamship Company - Cleveland, Ohio, USA | Pickands Mather & Company - USA | 1915/12/30 | 1926/02 |
| Paterson Steamships Ltd. - Fort William, Ontario, Canada | | 1926/02 | 1951/01 |
| N.M. Paterson & Sons - Fort William, Ontario, Canada | | 1951/01 | 1967/10 |
| Marine Salvage Ltd. - Port Colborne, Ontario, Canada | | 1967/10 | 1969/12 |
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| Fleet | From | Until | | Cleveland Steamship Co. - Cleveland, Ohio, USA | 1899/10 | 1915/12/30 |
| Interlake Steamship Company - Cleveland, Ohio | 1915/12/30 | 1926/02 |
| Paterson Steamships Ltd. - Fort William, Ontario | 1926/02 | 1951/01 |
| N.M. Paterson & Sons Ltd. - Canada | 1951/01 | 1967/10 |
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