APTX
| Air Products and Chemicals Incorporated | 1 |
BO
| Baltimore & Ohio | 4 |
CNJ
| Central Rail Road of New Jersey | 3 |
CR
| Conrail | 11 |
DH
| Delaware & Hudson | 1 |
DLW
| Delaware Lackawanna & Western | 7 |
ERIE
| Erie Railroad | 6 |
LNE
| Lehigh and New England Ry | 1 |
ME
| Morristown & Erie Railroad | 6 |
MNJ
| Middletown & New Jersey Railroad | 7 |
NS
| Norfolk Southern | 3 |
NSHR
| North Shore | 5 |
NYSW
| New York Susquehanna & Western | 1 |
PRR
| Pennsylvania Railroad | 4 |
RBMN
| Reading Blue Mountain & Northern | 2 |