AOK
| Arkansas-Oklahoma Railroad | 2 |
ATW
| Atlantic and Western | 1 |
BNSF
| BNSF Railway | 5 |
BS
| Birmingham Southern RR | 1 |
CAGY
| Columbus & Greenville Railway | 2 |
CN
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 10 |
CR
| Conrail | 132 |
CSS
| Chicago South Shore And South Bend | 2 |
CSX
| CSX Railroad | 17 |
GRW
| Gary Railway | 3 |
GTW
| Grand Trunk Western | 1 |
KCS
| Kansas City Southern | 3 |
LW
| Louisville and Wadley Railway Company | 1 |
NOKL
| Northwestern Oklahoma | 9 |
NS
| Norfolk Southern | 81 |
NSAX
| National Steel Corporation | 2 |
NW
| Norfolk & Western | 11 |
NYC
| New York Central | 12 |
SCIH
| South Chicago & Indiana Harbor Railway C | 1 |
SOU
| Southern | 8 |
TFM
| Kansas City Southern De Mexico | 1 |
TR
| Tomahawk Railway L.P. | 5 |
UP
| Union Pacific Railroad Company | 3 |