AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BNSF
| BNSF Railway | 2 |
BR
| Buffalo and Pittsburgh | 1 |
CNA
| Canadian National Railways | 1 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 3 |
CPAA
| Canadian Pacific Railway | 2 |
DME
| Dakota, Minnesota and Eastern | 2 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
HLMX
| Helm Financial Corporation | 1 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 3 |
MP
| Missouri Pacific | 2 |
NSHR
| North Shore | 1 |
PSMX
| Esco Corporation | 1 |
QC
| Quebec Central | 1 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 1 |
TCWR
| Twin Cities and Western | 1 |
TR
| Tomahawk Railway L.P. | 1 |
WC
| Wisconsin Central | 2 |