ADN
| Ashley Drew & Northern | 1 |
AMTK
| Amtrak | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BNSF
| BNSF Railway | 1 |
CNW
| Chicago & Northwestern | 2 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 3 |
DRGW
| Denver & Rio Grande Western | 2 |
GTW
| Grand Trunk Western | 1 |
ICG
| Illinois Central Gulf | 1 |
MP
| Missouri Pacific | 9 |
MRS
| Manufacturers Railway | 2 |
NS
| Norfolk Southern | 2 |
NYC
| New York Central | 2 |
PAL
| Paducah & Louisville | 2 |
SLSF
| Saint Louis-San Francisco | 1 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBOX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 3 |
UPP
| Union Pacific Passenger | 14 |
WSOR
| Wisconsin & Southern | 3 |