AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 1 |
BNSF
| BNSF Railway | 3 |
COER
| Crab Orchard & Egyptian | 2 |
CR
| Conrail | 13 |
CSS
| Chicago South Shore And South Bend | 6 |
CSX
| CSX Railroad | 31 |
EJE
| Elgin Joliet and Eastern | 2 |
IHB
| Indiana Harbor Belt | 13 |
INLX
| Incoal Company | 25 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 21 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 5 |
SCIH
| South Chicago & Indiana Harbor Railway C | 1 |
SOU
| Southern | 4 |
TR
| Tomahawk Railway L.P. | 1 |