AA
| Ann Arbor | 2 |
ADN
| Ashley Drew & Northern | 5 |
AMR
| Arcata & Mad River | 2 |
AN
| Apalachicola Northern | 2 |
APA
| Apache Railway Company | 4 |
ASAB
| Bay Line Railroad LLC | 3 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
BCIT
| Canadian National Railways | 1 |
BN
| Burlington Northern | 4 |
BO
| Baltimore & Ohio | 1 |
CBQ
| Chicago Burlington & Quincy | 113 |
CGW
| Chicago Great Western | 1 |
CPLT
| CAMINO, PLACERVILLE & LAKE TAHOE RAILROAD CO. | 1 |
GN
| Great Northern | 4 |
IC
| Illinois Central | 1 |
LN
| Louisville & Nashville | 1 |
LOAM
| Lousiana Midland | 1 |
LPN
| Longview, Portland & Northern | 1 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 2 |
MP
| Missouri Pacific | 1 |
MSE
| Mississippi Export Railroad Company | 1 |
NDEM
| NDEM | 3 |
NJII
| New Jersey, Indiana and Illinois | 1 |
NOKL
| Northwestern Oklahoma | 2 |
PICK
| Pickens Railway | 2 |
RBOX
| Railbox Company | 2 |
SCL
| Seaboard Coast Line | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 3 |
SPS
| Spokane Portland & Seattle | 2 |
TM
| Texas-Mexican | 1 |
TOC
| Toledo & Ohio Central | 1 |
TOCK
| TOCK | 1 |
TP
| Texas & Pacific | 1 |
UO
| Union Railway of Oregon | 1 |
UP
| Union Pacific Railroad Company | 3 |
VSO
| Valdosta Southern | 1 |
WCTR
| WCTU Company White City Terminal Railway | 2 |
WP
| Western Pacific | 2 |
YS
| Youngstown Southern Ry | 1 |
YW
| Yreka Western Railroad Company | 1 |