CIRR
| Chattahoochee Industrial Railroad | 1 |
CNJ
| Central Rail Road of New Jersey | 2 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 1 |
DLW
| Delaware Lackawanna & Western | 1 |
DTI
| Detroit Toledo & Ironton | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
ICG
| Illinois Central Gulf | 1 |
LV
| Lehigh Valley | 1 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 1 |
NP
| Northern Pacific | 2 |
NS
| Norfolk Southern | 1 |
PC
| Penn Central | 7 |
PLE
| Pittsburgh & Lake Erie | 1 |
PRR
| Pennsylvania Railroad | 1 |
RDG
| Reading Railroad | 18 |
SP
| Southern Pacific | 1 |
TPW
| Toledo Peoria & Western | 1 |
WM
| Western Maryland | 2 |