AOK
| Arkansas-Oklahoma Railroad | 1 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CNA
| Canadian National Railways | 3 |
CR
| Conrail | 3 |
CSX
| CSX Railroad | 1 |
EEC
| East Erie Commercial Railroad | 1 |
FBOX
| TTX Company | 2 |
GNRR
| Georgia Northeastern | 2 |
GTW
| Grand Trunk Western | 1 |
GVSR
| Galveston Railroad L.P. | 1 |
HS
| H and S Railroad Company | 1 |
KCS
| Kansas City Southern | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 4 |
NS
| Norfolk Southern | 2 |
NYC
| New York Central | 1 |
PPCX
| AAPRCO Register Private Cars | 5 |
PRR
| Pennsylvania Railroad | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOU
| Southern | 1 |
STE
| Stockton Terminal and Eastern RR | 1 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 1 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |
WSOR
| Wisconsin & Southern | 5 |