BN
| Burlington Northern | 1 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 10 |
CSX
| CSX Railroad | 24 |
IC
| Illinois Central | 1 |
LN
| Louisville & Nashville | 5 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 5 |
SBD
| Seaboard System | 6 |
SCL
| Seaboard Coast Line | 2 |
SOU
| Southern | 1 |
THB
| Toronto Hamilton & Buffalo | 2 |
WC
| Wisconsin Central | 1 |