ATW
| Atlantic and Western | 1 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 2 |
CAGY
| Columbus & Greenville Railway | 1 |
CSX
| CSX Railroad | 79 |
HS
| H and S Railroad Company | 2 |
NS
| Norfolk Southern | 2 |
NYC
| New York Central | 10 |
TR
| Tomahawk Railway L.P. | 3 |
UP
| Union Pacific Railroad Company | 4 |