ACL
| Atlantic Coast Line | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 5 |
BO
| Baltimore & Ohio | 22 |
CBQ
| Chicago Burlington & Quincy | 1 |
CGW
| Chicago Great Western | 1 |
CN
| Canadian National Railways | 3 |
CNJ
| Central Rail Road of New Jersey | 1 |
CNW
| Chicago & Northwestern | 2 |
CO
| Chesapeake & Ohio | 11 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 17 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CSX
| CSX Railroad | 18 |
DLW
| Delaware Lackawanna & Western | 1 |
DTI
| Detroit Toledo & Ironton | 5 |
DUPX
| Du Pont De Nemours and Company Incorporated | 2 |
GMRY
| Great Miami | 2 |
GVT
| GVT | 1 |
IC
| Illinois Central | 2 |
IORY
| Indiana & Ohio | 1 |
LN
| Louisville & Nashville | 3 |
LV
| Lehigh Valley | 1 |
MC
| Mass Coastal | 2 |
MKT
| Missouri-Kansas-Texas | 2 |
MON
| Monon Route | 1 |
MP
| Missouri Pacific | 1 |
NH
| New Haven | 1 |
NKP
| Nickel Plate | 1 |
NP
| Northern Pacific | 2 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 4 |
OHCR
| Ohio Central | 2 |
OHPA
| Ohio and Pennsylvania Railroad Company | 1 |
PC
| Penn Central | 2 |
PLE
| Pittsburgh & Lake Erie | 2 |
PRR
| Pennsylvania Railroad | 3 |
RJCC
| R.J. Corman Railroad/Kentucky Lines | 1 |
SCL
| Seaboard Coast Line | 2 |
SLRS
| SMS Rail Service Incorporated | 2 |
SOO
| Soo Line | 1 |
SOU
| Southern | 1 |
SRC
| Strasburg Railroad | 1 |
TCRX
| Tennessee Central Railway Musem | 1 |
UP
| Union Pacific Railroad Company | 1 |
URR
| Union Railroad | 3 |
WE
| Wheeling & Lake Erie | 1 |
WFS
| West Isle Line Incorporated | 1 |
WM
| Western Maryland | 1 |