BN
| Burlington Northern | 2 |
CNW
| Chicago & Northwestern | 3 |
CR
| Conrail | 1 |
DJJX
| Joseph Transportation Incorporated | 2 |
JTIX
| David J Joseph Company | 1 |
LW
| Louisville and Wadley Railway Company | 2 |
MP
| Missouri Pacific | 4 |
PC
| Penn Central | 1 |
SMIX
| Structural Metals Incorporated | 2 |
SP
| Southern Pacific | 1 |
WCRC
| Washington Central | 1 |