BO
| Baltimore & Ohio | 2 |
CN
| Canadian National Railways | 1 |
EL
| Erie Lackawanna | 1 |
LNE
| Lehigh and New England Ry | 11 |
LV
| Lehigh Valley | 1 |
PRR
| Pennsylvania Railroad | 6 |
RDG
| Reading Railroad | 19 |
SBVR
| South Branch Valley Rail Road | 1 |
SRC
| Strasburg Railroad | 1 |
TWLX
| TWLX | 1 |
WWRC
| Wilmington and Western Railroad | 1 |