AGR
| Alabama and Gulf Coast | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 2 |
AN
| Apalachicola Northern | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CSX
| CSX Railroad | 4 |
EEC
| East Erie Commercial Railroad | 2 |
KCS
| Kansas City Southern | 1 |
MEC
| Maine Central | 2 |
NS
| Norfolk Southern | 2 |
SOU
| Southern | 2 |