| Simonson, Mark A. | | | WILLIAM G. MATHER | Watchman |
| Simonson, Mark A.; Cliffs News Aug1979 | Cliffs News Aug1979 | 1979-00-00 | CHAMPLAIN | Watchman |
| Simonson, Mark A.; Cliffs News July 1978 | Cliffs News July 1978 | 1978-00-00 | FRONTENAC | deckhand |
| Simonson, Mark A.; Cliffs Seniority list 6/26/80; 1980 | Cliffs Seniority list 6/26/80 | 1980-00-00 | | |
| Simonson, Mark A.; Cliffs Seniority list October 1977 | Cliffs Seniority list October 1977 | 1977-00-00 | FRONTENAC | deckhand |
| Simonson, Mark A.; LCA Crew List | LCA Crew List | | WILLIAM G. MATHER | Watchman |
| Simonson, Mark A.; pc J. Clark | pc J. Clark | | CHAMPLAIN | Watchman |
| Simonson, Mark A.; USS Seniority list, 1974 | USS Seniority list, 1974 | 1974-00-00 | THOMAS F. COLE | deckhand |