ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 1 |
BLE
| Bessemer & Lake Erie | 1 |
BNSF
| BNSF Railway | 7 |
CNW
| Chicago & Northwestern | 5 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 40 |
CSS
| Chicago South Shore And South Bend | 1 |
DCCX
| McDonnell Douglas Corporation | 1 |
EJE
| Elgin Joliet and Eastern | 1 |
FXE
| Ferromex | 3 |
GTW
| Grand Trunk Western | 2 |
HZGX
| Herzog Contracting Corporation | 1 |
IC
| Illinois Central | 1 |
ICE
| Iowa Chicago and Eastern | 2 |
IHB
| Indiana Harbor Belt | 4 |
KCS
| Kansas City Southern | 9 |
LRWN
| Little Rock & Western | 1 |
MNNR
| Minnesota Commercial | 1 |
MP
| Missouri Pacific | 7 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 7 |
NW
| Norfolk & Western | 1 |
SOU
| Southern | 2 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 1 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 2 |
WE
| Wheeling & Lake Erie | 1 |