ACJ
| Ashtabula, Carson & Jefferson Scenic | 1 |
ATSF
| Atchison Topeka & Santa Fe | 4 |
BLE
| Bessemer & Lake Erie | 4 |
BN
| Burlington Northern | 19 |
BO
| Baltimore & Ohio | 33 |
BRC
| Belt Railway of Chicago | 3 |
CNW
| Chicago & Northwestern | 8 |
CO
| Chesapeake & Ohio | 13 |
CP
| Canadian Pacific Railway | 5 |
CR
| Conrail | 33 |
CSX
| CSX Railroad | 5 |
DRGW
| Denver & Rio Grande Western | 1 |
DTI
| Detroit Toledo & Ironton | 2 |
EJE
| Elgin Joliet and Eastern | 1 |
EL
| Erie Lackawanna | 1 |
ERIE
| Erie Railroad | 1 |
FLNX
| R.P. Flynn Incorporated d/b/a Ohio Railway Supply | 1 |
GSMR
| Great Smoky Mountains | 1 |
GTW
| Grand Trunk Western | 15 |
IAIS
| Iowa Interstate | 4 |
ICG
| Illinois Central Gulf | 4 |
IHB
| Indiana Harbor Belt | 19 |
ISCX
| ISC Incorporated | 2 |
KBSR
| Kankakee Beaverville and Southern Railroad Company | 1 |
KJR
| Kiski Junction Railroad | 2 |
LN
| Louisville & Nashville | 5 |
LSMS
| Lake Shore Michigan Southern Railroad | 2 |
MILW
| Milwaukee Road | 4 |
MP
| Missouri Pacific | 2 |
NCSL
| Nashville Chattanooga & St Louis | 1 |
NKP
| Nickel Plate | 6 |
NW
| Norfolk & Western | 32 |
NYC
| New York Central | 1 |
NYLE
| New York and Lake Erie Railroad Company | 1 |
PC
| Penn Central | 1 |
PLE
| Pittsburgh & Lake Erie | 3 |
PRR
| Pennsylvania Railroad | 1 |
PS
| Pittsburg and Shawmut Railroad Company | 1 |
SBD
| Seaboard System | 7 |
SCL
| Seaboard Coast Line | 1 |
SOO
| Soo Line | 8 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 2 |
UP
| Union Pacific Railroad Company | 3 |
WM
| Western Maryland | 2 |
YS
| Youngstown Southern Ry | 1 |