BN
| Burlington Northern | 1 |
CSX
| CSX Railroad | 7 |
DRGW
| Denver & Rio Grande Western | 1 |
HS
| H and S Railroad Company | 1 |
IC
| Illinois Central | 1 |
RBOX
| Railbox Company | 11 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
UP
| Union Pacific Railroad Company | 1 |
WCCL
| Wisconsin Central | 1 |