AOK
| Arkansas-Oklahoma Railroad | 3 |
BLE
| Bessemer & Lake Erie | 1 |
BNSF
| BNSF Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CN
| Canadian National Railways | 10 |
CNW
| Chicago & Northwestern | 8 |
CR
| Conrail | 36 |
CSS
| Chicago South Shore And South Bend | 28 |
CSX
| CSX Railroad | 88 |
CTRN
| Union Pacific Railroad Company | 17 |
DLRX
| General Electric Rail Services | 4 |
EJE
| Elgin Joliet and Eastern | 43 |
GRW
| Gary Railway | 69 |
GTW
| Grand Trunk Western | 43 |
IC
| Illinois Central | 4 |
ICE
| Iowa Chicago and Eastern | 4 |
IHB
| Indiana Harbor Belt | 138 |
INLX
| Incoal Company | 326 |
LRS
| Laurinburg and Southern | 6 |
LW
| Louisville and Wadley Railway Company | 1 |
MKT
| Missouri-Kansas-Texas | 4 |
MP
| Missouri Pacific | 16 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 90 |
NSAX
| National Steel Corporation | 11 |
NW
| Norfolk & Western | 10 |
NYC
| New York Central | 24 |
SCIH
| South Chicago & Indiana Harbor Railway C | 2 |
SMW
| St Marys Railway West LLC | 10 |
SOU
| Southern | 1 |
TFM
| Kansas City Southern De Mexico | 3 |
TR
| Tomahawk Railway L.P. | 11 |
UP
| Union Pacific Railroad Company | 52 |
WRWK
| Providence & Worchester Railroad | 2 |