CR
| Conrail | 1 |
CSS
| Chicago South Shore And South Bend | 19 |
CSX
| CSX Railroad | 1 |
EJE
| Elgin Joliet and Eastern | 1 |
GTW
| Grand Trunk Western | 1 |
IHB
| Indiana Harbor Belt | 6 |
INLX
| Incoal Company | 6 |
KCS
| Kansas City Southern | 1 |
MP
| Missouri Pacific | 3 |
NS
| Norfolk Southern | 5 |
SCIH
| South Chicago & Indiana Harbor Railway C | 8 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 1 |
TR
| Tomahawk Railway L.P. | 1 |
WE
| Wheeling & Lake Erie | 1 |