| Rovinsky, Ralph L. | | | | |
| Rovinsky, Ralph L. | | | | assistant engineer |
| Rovinsky, Ralph L. | | | GEORGE PERKINS | Oiler |
| Rovinsky, Ralph L. | | | GEORGE PERKINS | Oiler |
| Rovinsky, Ralph L. | | | PHILIP R. CLARKE | Second Assistant |
| Rovinsky, Ralph L. | | | THOMAS W. LAMONT | Second Assistant |
| Rovinsky, Ralph L. | | | WILLIAM J. FILBERT | Second Assistant |
| Rovinsky, Ralph L. | | | GEORGE W. PERKINS | Oiler |
| Rovinsky, Ralph L.; 1949 Blue Book; 1949 | 1949 Blue Book | 1949-00-00 | J. PIERPONT MORGAN | Third Assistant |
| Rovinsky, Ralph L.; Great Lakes News 8/48; 1948 | Great Lakes News 8/48 | 1948-00-00 | | Oiler |
| Rovinsky, Ralph L.; LCA Bulletin 37(1) | LCA Bulletin 37(1) | | WILLIAM E. COREY | Third Assistant |
| Rovinsky, Ralph L.; LCA Bulletin 5/48; 1948 | LCA Bulletin 5/48 | 1948-00-00 | | Oiler |