AERC
| Albany and Eastern Railroad Company | 4 |
ATW
| Atlantic and Western | 1 |
BAEX
| Andersons | 1 |
CNW
| Chicago & Northwestern | 5 |
EEC
| East Erie Commercial Railroad | 13 |
GMRC
| Green Mountain RR | 1 |
HS
| H and S Railroad Company | 7 |
MP
| Missouri Pacific | 1 |
MRL
| Montana Rail Link | 2 |
SP
| Southern Pacific | 2 |
SRN
| Sabine River & Northern | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
VR
| Valdosta Railway | 1 |
WC
| Wisconsin Central | 1 |