ACL
| Atlantic Coast Line | 1 |
AR
| Aberdeen and Rockfish | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BO
| Baltimore & Ohio | 35 |
CHRX
| The Chesapeake Division | 2 |
CO
| Chesapeake & Ohio | 15 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 3 |
DH
| Delaware & Hudson | 1 |
EV
| Everett Railroad | 1 |
HFS
| HFS | 1 |
LHR
| Lehigh & Hudson River | 1 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
NW
| Norfolk & Western | 8 |
PHNX
| Phn Llc | 1 |
PRR
| Pennsylvania Railroad | 4 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
SCL
| Seaboard Coast Line | 2 |
SOO
| Soo Line | 1 |