AOK
| Arkansas-Oklahoma Railroad | 1 |
CHTT
| Chicago Heights Terminal Transfer | 3 |
CSX
| CSX Railroad | 19 |
EJE
| Elgin Joliet and Eastern | 2 |
GRW
| Gary Railway | 6 |
IHB
| Indiana Harbor Belt | 1 |
INLX
| Incoal Company | 2 |
NS
| Norfolk Southern | 8 |
NUC
| NUC | 2 |
NYC
| New York Central | 4 |
RJCW
| R.J. Corman Railroad Company/ Western Ohio Line | 5 |
UP
| Union Pacific Railroad Company | 1 |