BNSF
| BNSF Railway | 2 |
CN
| Canadian National Railways | 1 |
CR
| Conrail | 9 |
CSX
| CSX Railroad | 2 |
GRW
| Gary Railway | 3 |
GTW
| Grand Trunk Western | 1 |
IHB
| Indiana Harbor Belt | 2 |
INLX
| Incoal Company | 1 |
NS
| Norfolk Southern | 6 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 1 |
SOU
| Southern | 1 |
UP
| Union Pacific Railroad Company | 1 |