Owner | Manager | From | Until | H.W.A. Harms - Houston, Texas, USA | | 1949 | 1954 |
Alamo Water Transportation Company - Texas, USA | | 1954 | 1957 |
Charles H. Harper & Associates Inc. - USA | | 1957 | 1988/02 |
Catawba Transportation - Ohio, USA | | 1988/02 | 1997 |
Menasha Tugboat Company - Sarnia, Ontario, Canada | Gordon's Marine | 1997 | |
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