| Mattson, Lawrence E.; Cliffs Assignments 9/18/73; 1973 | Cliffs Assignments 9/18/73 | 1973-00-00 | RAYMOND H. REISS | Second Mate |
| Mattson, Lawrence E.; Cliffs News Dec 1975 | Cliffs News Dec 1975 | 1975-00-00 | EDWARD B. GREENE | Third Mate |
| Mattson, Lawrence E.; Cliffs News Dec 1975 | Cliffs News Dec 1975 | 1975-00-00 | CLIFFS VICTORY | Second Mate |
| Mattson, Lawrence E.; Cliffs News Nov 1974 | Cliffs News Nov 1974 | 1974-00-00 | THOMAS M.GIRDLER | deckhand |
| Mattson, Lawrence E.; Cliffs News Oct 1976 | Cliffs News Oct 1976 | 1976-00-00 | THOMAS F. PATTON | |
| Mattson, Lawrence E.; Cliffs Officers Assignments 3/21/80; 1980 | Cliffs Officers Assignments 3/21/80 | 1980-00-00 | RAYMOND H. REISS | First Mate |
| Mattson, Lawrence E.; Cliffs Officers Assignments 3/27/79; 1979 | Cliffs Officers Assignments 3/27/79 | 1979-00-00 | CLIFFS VICTORY | First Mate |
| Mattson, Lawrence E.; Cliffs Officers Assignments 8/8/78; 1978 | Cliffs Officers Assignments 8/8/78 | 1978-00-00 | THOMAS F. PATTON | First Mate |
| Mattson, Lawrence E.; Cliffs Vessel Officers 1972 fitout; 1972 | Cliffs Vessel Officers 1972 fitout | 1972-00-00 | WILLIS B. BOYER | Third Mate |
| Mattson, Lawrence E.; Cliffs Vessel Officers Seniority 6/26/80; 1980 | Cliffs Vessel Officers Seniority 6/26/80 | 1980-00-00 | | Second Mate |