ACL
| Atlantic Coast Line | 1 |
AR
| Aberdeen and Rockfish | 1 |
ATW
| Atlantic and Western | 1 |
BCLR
| Bay Colony | 3 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 2 |
CAGY
| Columbus & Greenville Railway | 1 |
CBQ
| Chicago Burlington & Quincy | 2 |
CCR
| Corinth & Counce | 1 |
CG
| Central Of Georgia | 1 |
CGW
| Chicago Great Western | 1 |
CN
| Canadian National Railways | 1 |
CNIS
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 2 |
CONW
| Colorado & North Western | 1 |
CPI
| Canadian Pacific Railway | 1 |
CV
| Central Vermont | 3 |
CVC
| Canadian National Railways | 2 |
DRGW
| Denver & Rio Grande Western | 3 |
DTI
| Detroit Toledo & Ironton | 1 |
DWC
| Canadian National Railways | 1 |
EL
| Erie Lackawanna | 1 |
ERIE
| Erie Railroad | 1 |
GBW
| Green Bay & Western | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
LC
| Lancaster & Chester | 1 |
LRS
| Laurinburg and Southern | 1 |
LV
| Lehigh Valley | 1 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 3 |
MON
| Monon Route | 1 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
MRL
| Montana Rail Link | 1 |
MRS
| Manufacturers Railway | 1 |
NW
| Norfolk & Western | 1 |
PHD
| Port Huron and Detroit Railroad Company | 2 |
PRV
| Pearl River Valley Railroad Company | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SM
| St. Marys Railroad | 1 |
SOO
| Soo Line | 2 |
SOU
| Southern | 1 |
STMA
| St. Maries River Railroad Company | 1 |
UP
| Union Pacific Railroad Company | 1 |
VC
| Virginia Central Railway | 1 |
WAB
| Wabash | 1 |
WM
| Western Maryland | 2 |
WP
| Western Pacific | 3 |
YW
| Yreka Western Railroad Company | 1 |