ANGX
| Andersons - Railgroup | 2 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 4 |
DME
| Dakota, Minnesota and Eastern | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
MET
| Modesto and Empire Traction Company | 8 |
MP
| Missouri Pacific | 1 |
SP
| Southern Pacific | 7 |
SSW
| St Louis Southwestern (Cotton Belt) | 5 |
TCWR
| Twin Cities and Western | 1 |
UP
| Union Pacific Railroad Company | 6 |
WSOR
| Wisconsin & Southern | 12 |