ACL
| Atlantic Coast Line | 1 |
AMTK
| Amtrak | 1 |
CO
| Chesapeake & Ohio | 6 |
CR
| Conrail | 5 |
CSX
| CSX Railroad | 162 |
LN
| Louisville & Nashville | 1 |
NS
| Norfolk Southern | 42 |
NSSX
| National Salvage and Service Corporation | 10 |
NW
| Norfolk & Western | 11 |
NYC
| New York Central | 8 |
PACX
| Plasser American Corporation | 1 |
PC
| Penn Central | 2 |
RFP
| Richmond Fredericksburg & Potomac | 3 |
SBD
| Seaboard System | 8 |
SCL
| Seaboard Coast Line | 4 |
SOU
| Southern | 6 |
SP
| Southern Pacific | 1 |