ALY
| Allegheny and Eastern Railroad Incorpora | 2 |
BN
| Burlington Northern | 7 |
BNSF
| BNSF Railway | 2 |
BPRR
| Buffalo and Pittsburgh | 2 |
CN
| Canadian National Railways | 9 |
CP
| Canadian Pacific Railway | 2 |
CSX
| CSX Railroad | 2 |
GNRR
| Georgia Northeastern | 1 |
ICG
| Illinois Central Gulf | 4 |
IHB
| Indiana Harbor Belt | 2 |
LW
| Louisville and Wadley Railway Company | 3 |
MMA
| Montreal, Maine & Atlantic | 1 |
MP
| Missouri Pacific | 1 |
NS
| Norfolk Southern | 1 |
SBD
| Seaboard System | 1 |
SH
| Steelton and Highspire Railroad Company | 8 |
SOU
| Southern | 26 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 4 |
TOE
| Texas Oklahoma and Eastern RR Company | 2 |
TR
| Tomahawk Railway L.P. | 1 |
TTPX
| TTX Company - Bulkhead Flats | 22 |
YARR
| Youngstown and Austintown Railroad | 2 |