BN
| Burlington Northern | 8 |
BNSF
| BNSF Railway | 7 |
CAGY
| Columbus & Greenville Railway | 1 |
CP
| Canadian Pacific Railway | 3 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 2 |
GRW
| Gary Railway | 1 |
HS
| H and S Railroad Company | 1 |
IC
| Illinois Central | 1 |
IHB
| Indiana Harbor Belt | 1 |
KCS
| Kansas City Southern | 3 |
LW
| Louisville and Wadley Railway Company | 2 |
NS
| Norfolk Southern | 2 |
UP
| Union Pacific Railroad Company | 5 |