CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 11 |
CR
| Conrail | 40 |
CSX
| CSX Railroad | 16 |
GTW
| Grand Trunk Western | 9 |
HLMX
| Helm Financial Corporation | 1 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 1 |
MILW
| Milwaukee Road | 2 |
MP
| Missouri Pacific | 5 |
NS
| Norfolk Southern | 6 |
NYC
| New York Central | 9 |
SOU
| Southern | 13 |
SP
| Southern Pacific | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 7 |
WP
| Western Pacific | 6 |