ATW
| Atlantic and Western | 1 |
BCOL
| Canadian National Railways | 2 |
BNSF
| BNSF Railway | 3 |
CLC
| Columbia and Cowlitz Railway Company | 1 |
CN
| Canadian National Railways | 5 |
CNA
| Canadian National Railways | 2 |
CP
| Canadian Pacific Railway | 5 |
DMM
| Dansville and Mount Morris Railroad Comp | 3 |
FBOX
| TTX Company | 1 |
GNRR
| Georgia Northeastern | 1 |
GTW
| Grand Trunk Western | 1 |
HS
| H and S Railroad Company | 1 |
IC
| Illinois Central | 1 |
MRL
| Montana Rail Link | 6 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
RBOX
| Railbox Company | 1 |
SLGG
| Progress Rail Services Corporation | 2 |
SOU
| Southern | 1 |
SRY
| Southern Railway of British Columbia Lim | 19 |
TASD
| Terminal Alabama State Docks | 1 |
WC
| Wisconsin Central | 1 |
WCCL
| Wisconsin Central | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 2 |