ATSF
| Atchison Topeka & Santa Fe | 25 |
BN
| Burlington Northern | 21 |
BNSF
| BNSF Railway | 3 |
BO
| Baltimore & Ohio | 3 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 4 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CSX
| CSX Railroad | 1 |
DJRR
| Decatur Junction | 2 |
DMHX
| Davenport Mammoet LLC | 1 |
DUPX
| Du Pont De Nemours and Company Incorporated | 1 |
ER
| Eesti Raudtee | 1 |
GN
| Great Northern | 3 |
GWAX
| Railroad Salvage and Restoration Incorporated | 1 |
IC
| Illinois Central | 1 |
KCS
| Kansas City Southern | 5 |
LMIX
| Loram Maintenance of Way Inc. | 1 |
LN
| Louisville & Nashville | 1 |
LV
| Lehigh Valley | 1 |
MIL
| MIL | 1 |
MILW
| Milwaukee Road | 1 |
MP
| Missouri Pacific | 13 |
MRL
| Montana Rail Link | 3 |
NP
| Northern Pacific | 2 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 1 |
OHCR
| Ohio Central | 1 |
PAL
| Paducah & Louisville | 2 |
PGE
| Pacific Great Eastern | 2 |
RDG
| Reading Railroad | 1 |
SCL
| Seaboard Coast Line | 1 |
SLIM
| St Louis, Iron Mountain & Southern | 1 |
SLSF
| Saint Louis-San Francisco | 5 |
SOO
| Soo Line | 1 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
TRRA
| Terminal RR of St Louis | 7 |
UP
| Union Pacific Railroad Company | 3 |
WAB
| Wabash | 1 |
WSOR
| Wisconsin & Southern | 1 |