| Johnson, Robert E.; Cliffs 1967 Seniority List; 1967 | Cliffs 1967 Seniority List | 1967-00-00 | WALTER A. STERLING | Watchman |
| Johnson, Robert E.; Cliffs 1975 Seniority list; 1975 | Cliffs 1975 Seniority list | 1975-00-00 | CHAMPLAIN | Wheelsman |
| Johnson, Robert E.; Cliffs News Nov 1974 | Cliffs News Nov 1974 | 1974-00-00 | WALTER A. STERLING | ABMM |
| Johnson, Robert E.; Cliffs Seniority list 6/15/81; 1981 | Cliffs Seniority list 6/15/81 | 1981-00-00 | EDWARD B. GREENE | Wheelsman |
| Johnson, Robert E.; Cliffs Seniority list 6/26/80; 1980 | Cliffs Seniority list 6/26/80 | 1980-00-00 | | |
| Johnson, Robert E.; Cliffs Seniority list 6/26/80; 1980 | Cliffs Seniority list 6/26/80 | 1980-00-00 | CHAMPLAIN | Wheelsman |
| Johnson, Robert E.; Cliffs Seniority list 7/15; 1915 | Cliffs Seniority list 7/15 | 1915-00-00 | EDWARD B. GREENE | Wheelsman |
| Johnson, Robert E.; Cliffs Seniority list October 1977 | Cliffs Seniority list October 1977 | 1977-00-00 | CHAMPLAIN | Wheelsman |