ACL
| Atlantic Coast Line | 2 |
AM
| Arkansas & Missouri | 1 |
AT
| Auto Train | 2 |
ATSF
| Atchison Topeka & Santa Fe | 14 |
BN
| Burlington Northern | 12 |
BO
| Baltimore & Ohio | 1 |
BOOT
| BOOT | 1 |
BUDD
| BUDD | 4 |
CA
| Chesapeake & Albemarle | 1 |
CBQ
| Chicago Burlington & Quincy | 234 |
CBQZ
| Chicago, Burlington & Quincy | 1 |
CNJ
| Central Rail Road of New Jersey | 1 |
CNW
| Chicago & Northwestern | 8 |
CP
| Canadian Pacific Railway | 3 |
CRIP
| Chicago Rock Island & Pacific | 4 |
CS
| Colorado & Southern | 1 |
CSS
| Chicago South Shore And South Bend | 13 |
CTA
| Chicago Transit Authority | 2 |
CVAR
| Cedar Valley Railroad | 1 |
CWI
| Chicago and Western Indiana | 1 |
DRGW
| Denver & Rio Grande Western | 5 |
EMDX
| EMD | 2 |
GMO
| Gulf Mobile & Ohio | 1 |
GMRC
| Green Mountain RR | 1 |
GN
| Great Northern | 2 |
GTW
| Grand Trunk Western | 3 |
IC
| Illinois Central | 5 |
INR
| INR | 1 |
KCS
| Kansas City Southern | 1 |
LN
| Louisville & Nashville | 4 |
MEC
| Maine Central | 1 |
METX
| METRA | 2 |
MILW
| Milwaukee Road | 33 |
MNA
| Missouri and Northern Arkansas | 4 |
MP
| Missouri Pacific | 21 |
NCSL
| Nashville Chattanooga & St Louis | 1 |
NP
| Northern Pacific | 1 |
NYC
| New York Central | 5 |
PAT
| Port Auhority of Allegheny County | 1 |
PM
| Pere Marquette | 1 |
PRR
| Pennsylvania Railroad | 1 |
PULL
| Pullman | 5 |
RDG
| Reading Railroad | 1 |
REA
| REA | 1 |
SBD
| Seaboard System | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SOO
| Soo Line | 1 |
SOU
| Southern | 14 |
SP
| Southern Pacific | 4 |
SPS
| Spokane Portland & Seattle | 1 |
UP
| Union Pacific Railroad Company | 12 |
WP
| Western Pacific | 2 |