CN
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 4 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 26 |
GTW
| Grand Trunk Western | 1 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 2 |
IHB
| Indiana Harbor Belt | 5 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 11 |
TR
| Tomahawk Railway L.P. | 2 |