APTX
| Air Products and Chemicals Incorporated | 1 |
BAR
| Bangor & Aroostook | 1 |
BO
| Baltimore & Ohio | 1 |
CLP
| Clarendon and Pittsford | 1 |
CNJ
| Central Rail Road of New Jersey | 1 |
CO
| Chesapeake & Ohio | 1 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 3 |
DH
| Delaware & Hudson | 50 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
DLW
| Delaware Lackawanna & Western | 2 |
EL
| Erie Lackawanna | 3 |
GMRC
| Green Mountain RR | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
LASB
| Lackawaxen and Stourbridge | 1 |
LV
| Lehigh Valley | 2 |
NH
| New Haven | 1 |
NYC
| New York Central | 1 |
NYOW
| New York, Ontario & Western | 1 |
PNER
| PNER | 1 |
PRR
| Pennsylvania Railroad | 5 |
PT
| Peninsula Terminal Company | 1 |
RBMN
| Reading Blue Mountain & Northern | 6 |
RDG
| Reading Railroad | 3 |
RPPX
| Midwest Generation LLC | 1 |
RS
| Roberval and Saguenay Railway Company | 1 |
RUT
| Vermont Railway Incorporated | 1 |