AOK
| Arkansas-Oklahoma Railroad | 3 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CN
| Canadian National Railways | 6 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 3 |
CSX
| CSX Railroad | 9 |
CTRN
| Union Pacific Railroad Company | 5 |
DLRX
| General Electric Rail Services | 1 |
DTI
| Detroit Toledo & Ironton | 1 |
EJE
| Elgin Joliet and Eastern | 2 |
GRW
| Gary Railway | 4 |
GTW
| Grand Trunk Western | 6 |
IC
| Illinois Central | 1 |
ICE
| Iowa Chicago and Eastern | 1 |
KCS
| Kansas City Southern | 1 |
LRS
| Laurinburg and Southern | 4 |
MP
| Missouri Pacific | 2 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 3 |
NW
| Norfolk & Western | 3 |
NYC
| New York Central | 5 |
SMW
| St Marys Railway West LLC | 4 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 4 |