BKTY
| Union Pacific Railroad Company | 8 |
CNA
| Canadian National Railways | 7 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 4 |
GTW
| Grand Trunk Western | 6 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 4 |
NS
| Norfolk Southern | 3 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 8 |
SOU
| Southern | 1 |
UP
| Union Pacific Railroad Company | 1 |