BPRR
| Buffalo and Pittsburgh | 1 |
CSX
| CSX Railroad | 10 |
EEC
| East Erie Commercial Railroad | 10 |
GVSR
| Galveston Railroad L.P. | 5 |
HS
| H and S Railroad Company | 8 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 1 |
SP
| Southern Pacific | 8 |
SRN
| Sabine River & Northern | 5 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
WP
| Western Pacific | 8 |