AERC
| Albany and Eastern Railroad Company | 2 |
ATW
| Atlantic and Western | 1 |
BKTY
| Union Pacific Railroad Company | 10 |
EEC
| East Erie Commercial Railroad | 7 |
HS
| H and S Railroad Company | 4 |
KCS
| Kansas City Southern | 3 |
LRS
| Laurinburg and Southern | 1 |
MNNR
| Minnesota Commercial | 1 |
NS
| Norfolk Southern | 1 |
SRN
| Sabine River & Northern | 3 |
WREX
| Western Railroad Equipment Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |