AOK
| Arkansas-Oklahoma Railroad | 2 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 25 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CN
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 6 |
CSS
| Chicago South Shore And South Bend | 4 |
CSX
| CSX Railroad | 62 |
CTRN
| Union Pacific Railroad Company | 2 |
EJE
| Elgin Joliet and Eastern | 9 |
IC
| Illinois Central | 2 |
IHB
| Indiana Harbor Belt | 48 |
INLX
| Incoal Company | 9 |
KCS
| Kansas City Southern | 7 |
LW
| Louisville and Wadley Railway Company | 1 |
MP
| Missouri Pacific | 5 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 45 |
NYC
| New York Central | 2 |
TFM
| Kansas City Southern De Mexico | 3 |
TR
| Tomahawk Railway L.P. | 3 |
UP
| Union Pacific Railroad Company | 2 |
WE
| Wheeling & Lake Erie | 5 |