Owner | Manager | From | Until | Pittsburgh Steamship Company - Duluth, Minnesota, United States | Harry Coulby - USA | 1905 | 1951 |
United States Steel Corporation - USA | | 1951 | 1964/03 |
Redwood Enterprises Ltd. - Port Credit, Ontario, Canada | Westdale Shipping Ltd. - Canada | 1964/03 | 1969 |
International Cruising Company - Port Credit, Ontario, Canada | | 1969 | 1971/03 |
Reoch Transports Ltd. - Mississauga, Ontario, Canada | | 1971/03 | 1976 |
Dale Transports Ltd. - Toronto, Ontario, Canada | | 1976 | 1977 |
Pierson Steamships Ltd. - Toronto, Ontario, Canada | Westdale Shipping Ltd. - Canada | 1977 | 1981/11/05 |
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Fleet | From | Until | Pittsburgh Steamship Company - Duluth, Minnesota | 1905 | 1951 |
United States Steel Corporation | 1951 | 1964/03 |
Soo River Company - Mississauga, Ontario | 1977 | 1981/11/05 |
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