ACL
| Atlantic Coast Line | 3 |
AR
| Aberdeen and Rockfish | 3 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BB
| Buckingham Branch | 1 |
BBCX
| ABB Power Generation Incorporated | 1 |
BNSF
| BNSF Railway | 1 |
BO
| Baltimore & Ohio | 6 |
BOMX
| B&O Railroad Museum Inc. | 1 |
CO
| Chesapeake & Ohio | 2 |
CSX
| CSX Railroad | 4 |
GEGX
| GE Gas Turbine | 8 |
IC
| Illinois Central | 2 |
LNE
| Lehigh and New England Ry | 1 |
MEC
| Maine Central | 1 |
MH
| Mount Hood Railroad | 1 |
NKP
| Nickel Plate | 3 |
NP
| Northern Pacific | 2 |
NS
| Norfolk Southern | 4 |
NW
| Norfolk & Western | 26 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
RNCX
| North Carolina Dept Of Transportation | 2 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
RRW
| Rockton Rion & Western | 1 |
SAL
| Seaboard Air Line | 7 |
SCL
| Seaboard Coast Line | 5 |
SM
| St. Marys Railroad | 1 |
SOU
| Southern | 13 |
SPS
| Spokane Portland & Seattle | 1 |
UP
| Union Pacific Railroad Company | 1 |
WCL
| WCL | 3 |