AMTK
| Amtrak | 4 |
BBCX
| ABB Power Generation Incorporated | 1 |
BDRV
| Belvidere & Delaware Railroad | 2 |
BO
| Baltimore & Ohio | 8 |
CLXX
| Carload Express | 1 |
CN
| Canadian National Railways | 1 |
CNJ
| Central Rail Road of New Jersey | 1 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 1 |
DH
| Delaware & Hudson | 1 |
DL
| Delaware-Lackawanna Railroad Company | 2 |
EL
| Erie Lackawanna | 1 |
ERIE
| Erie Railroad | 3 |
JTCX
| Juniata Terminal | 1 |
KRL
| Kasgro Rail Lines | 2 |
LV
| Lehigh Valley | 3 |
ME
| Morristown & Erie Railroad | 1 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 1 |
NHIR
| New Hope & Ivyland | 1 |
NHRR
| New Hope and Ivyland Rail Road | 1 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 1 |
NYSW
| New York Susquehanna & Western | 1 |
PRR
| Pennsylvania Railroad | 4 |
RBMN
| Reading Blue Mountain & Northern | 2 |
RR
| Raritan River | 1 |
SNC
| Saratoga & North Creek Railway | 1 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 1 |
SRNJ
| Southern Railroad Company of New Jersey | 1 |
TOYX
| TOYX | 2 |
URR
| Union Railroad | 2 |
VTRX
| VTRX | 1 |
WM
| Western Maryland | 2 |
WWRC
| Wilmington and Western Railroad | 2 |