| Owner | Manager | From | Until | | Red Star Towing Company Inc. - Brooklyn, New York, USA | | 1951 | 1983 |
| Kosnac Floating Derrick Corporation - Staten Island, New York, USA | | 1983 | 2004/04 |
| Ben & Sarah Fogg - Holland, Michigan, USA | | 2004/04 | 2005/03 |
| Northeastern Maritime Historical Foundation - Duluth, Minnesota, USA | | 2005/03 | 2007/02 |
| Calumet River Fleeting Company - Chicago, Illinois, USA | | 2007/02 | |
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