ATSF
| Atchison Topeka & Santa Fe | 4 |
BN
| Burlington Northern | 1 |
CO
| Chesapeake & Ohio | 3 |
CSX
| CSX Railroad | 2 |
DRGW
| Denver & Rio Grande Western | 1 |
GACX
| General American Marks Company | 1 |
MQT
| Marquette Rail | 5 |
NW
| Norfolk & Western | 2 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
SCL
| Seaboard Coast Line | 2 |
SIRX
| Southern Illinois Railcar Company | 2 |
TSBY
| Great Lakes Central Railroad | 1 |