ADN
| Ashley Drew & Northern | 1 |
CZCX
| Crown Zellerbach Corporation | 2 |
FP
| Fordyce & Princeton Railroad Company | 1 |
GMO
| Gulf Mobile & Ohio | 2 |
IC
| Illinois Central | 2 |
LA
| Lousiana and Arkansas | 1 |
LOAM
| Lousiana Midland | 1 |
MB
| Meridian & Bigbee | 2 |
MSV
| Mississippi and Skuna Valley Railroad Co | 1 |
SAL
| Seaboard Air Line | 1 |
SR
| Kansas City Southern | 1 |