AMTK
| Amtrak | 2 |
ARRX
| Anthracite Railroads Historical Society Incorporated | 1 |
BNSF
| BNSF Railway | 1 |
CSX
| CSX Railroad | 2 |
CV
| Central Vermont | 1 |
FEC
| Florida East Coast | 1 |
MPA
| Maryland and Pennsylvania Railroad | 2 |
NS
| Norfolk Southern | 1 |
PRR
| Pennsylvania Railroad | 1 |
RBOX
| Railbox Company | 3 |
RUT
| Vermont Railway Incorporated | 1 |
SOU
| Southern | 1 |
TRMX
| The Railroad Museum-TRM Industries | 2 |
WC
| Wisconsin Central | 1 |