ALY
| Allegheny and Eastern Railroad Incorpora | 2 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 6 |
BNSF
| BNSF Railway | 13 |
CN
| Canadian National Railways | 3 |
CRLE
| Coe Rail Incorporated | 6 |
FBOX
| TTX Company | 32 |
GMRC
| Green Mountain RR | 5 |
GTW
| Grand Trunk Western | 7 |
HS
| H and S Railroad Company | 7 |
IBT
| International Bridge and Terminal Company | 1 |
KCS
| Kansas City Southern | 4 |
LRS
| Laurinburg and Southern | 1 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MMA
| Montreal, Maine & Atlantic | 3 |
MP
| Missouri Pacific | 12 |
NERR
| Nashville and Eastern | 1 |
NOKL
| Northwestern Oklahoma | 4 |
NS
| Norfolk Southern | 2 |
SLR
| St Lawrence & Atlantic | 4 |
SP
| Southern Pacific | 3 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
TOFX
| TTX Company - Box Cars | 4 |
TR
| Tomahawk Railway L.P. | 10 |
UP
| Union Pacific Railroad Company | 7 |
WC
| Wisconsin Central | 1 |
WRWK
| Providence & Worchester Railroad | 1 |