BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 3 |
CP
| Canadian Pacific Railway | 1 |
GNRR
| Georgia Northeastern | 1 |
IHB
| Indiana Harbor Belt | 1 |
LMIC
| Lake Michigan & Indiana Railroad | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 1 |
SOU
| Southern | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TOE
| Texas Oklahoma and Eastern RR Company | 2 |
TTJX
| TTX Company-Bulkhead Flats | 3 |
TTPX
| TTX Company - Bulkhead Flats | 1 |
UMP
| Upper Merion and Plymouth Railroad | 2 |
WCTR
| WCTU Company White City Terminal Railway | 3 |