ACL
| Atlantic Coast Line | 24 |
BO
| Baltimore & Ohio | 3 |
CCO
| Clinchfield | 1 |
CNL
| Columbia Newberry & Laurens | 1 |
CO
| Chesapeake & Ohio | 1 |
CRR
| Clinchfield | 3 |
CSX
| CSX Railroad | 16 |
CWC
| Charleston & Western Carolina | 5 |
GEGX
| GE Gas Turbine | 1 |
ICG
| Illinois Central Gulf | 1 |
KRL
| Kasgro Rail Lines | 2 |
LN
| Louisville & Nashville | 10 |
NKP
| Nickel Plate | 1 |
NS
| Norfolk Southern | 3 |
NW
| Norfolk & Western | 14 |
OWTX
| Oneida & Western Transportation | 4 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
SAL
| Seaboard Air Line | 22 |
SBD
| Seaboard System | 27 |
SCL
| Seaboard Coast Line | 117 |
SOU
| Southern | 42 |
TEXX
| TEXX | 2 |
WAB
| Wabash | 1 |
WSSB
| WSSB | 1 |