ALS
| Alton & Southern Railway | 9 |
AMTK
| Amtrak | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 5 |
BN
| Burlington Northern | 3 |
CIMX
| CIMX | 1 |
CN
| Canadian National Railways | 5 |
CP
| Canadian Pacific Railway | 4 |
CR
| Conrail | 3 |
CRRX
| Canon City and Royal Gorge Railroad LLC | 1 |
DART
| Dallas Area Rapid Transit | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
GN
| Great Northern | 1 |
GTW
| Grand Trunk Western | 1 |
ICG
| Illinois Central Gulf | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 6 |
NS
| Norfolk Southern | 1 |
ONT
| Ontario Northland Railway | 1 |
PW
| Providence and Worcester | 1 |
RBBX
| Ringling Bros. and Barnum and Bailey | 2 |
SP
| Southern Pacific | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TFM
| Kansas City Southern De Mexico | 1 |
TRRA
| Terminal RR of St Louis | 2 |
TTX
| TTX Company | 2 |
UP
| Union Pacific Railroad Company | 10 |
VIA
| Via Rail Canada | 1 |