AGR
| Alabama and Gulf Coast | 1 |
ATW
| Atlantic and Western | 1 |
CN
| Canadian National Railways | 1 |
CSX
| CSX Railroad | 2 |
DODX
| Department Of Defense | 1 |
FCRD
| First Coast Railway | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 1 |
HS
| H and S Railroad Company | 1 |
MP
| Missouri Pacific | 1 |
NS
| Norfolk Southern | 2 |
RBOX
| Railbox Company | 1 |
SOU
| Southern | 1 |
TBOX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 2 |