CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 4 |
NYC
| New York Central | 1 |
SOU
| Southern | 2 |
TBOX
| TTX Company | 1 |
TFM
| Kansas City Southern De Mexico | 1 |
UP
| Union Pacific Railroad Company | 2 |