| 1 | WJM | Windsor Jet Management | Callsign: Windsor Jet, | USA | AVCODES |
| 2 | WJMS | WALKER, JAMES MICHAEL | | | SCAC4 |
| 3 | WJMX | The W.J. McCahan Sugar Refining & Molasses Co. | 7/1935-1/1943 | | NAKINA |
| 4 | WJMX | William J. McCormack Sand Division, Penn Industries, Inc. | added 10/1971; 1/1975; eliminated 4/1977 | | NAKINA |
| 5 | WJMX | The W.J. McCahan Sugar Refining & Molasses Co. | Apr-38 | | NRHS |
| 6 | WJMX | William J. McCormack Sand Division, Penn Industries, Inc. | added 10/71; 1/75 | | NRHS |
| 7 | WJMX | *W. J. MCCAHAN SUGAR REFINING & MOLASSES CO. | | | PWRC |
| 8 | WJMX | *WM. J. MCCORMACK SAND DIV., PENN INDUSTRIES, INC. | | | PWRC |
