BN
| Burlington Northern | 1 |
GMO
| Gulf Mobile & Ohio | 3 |
HABX
| Habco International Incorporated | 1 |
IC
| Illinois Central | 3 |
ICG
| Illinois Central Gulf | 14 |
KCS
| Kansas City Southern | 1 |
LN
| Louisville & Nashville | 9 |
LOAM
| Lousiana Midland | 1 |
MP
| Missouri Pacific | 2 |
NLG
| Kansas City Southern Railway Company (North Louisiana & Gulf) | 1 |
NOPS
| NOPS | 3 |
SLSF
| Saint Louis-San Francisco | 1 |
SOU
| Southern | 6 |
TP
| Texas & Pacific | 2 |