AERC
| Albany and Eastern Railroad Company | 1 |
AGR
| Alabama and Gulf Coast | 2 |
AKMD
| Arkansas Midland Railroad Company | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AMTK
| Amtrak | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 4 |
BAEX
| Andersons | 1 |
BCOL
| Canadian National Railways | 5 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 2 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMHX
| CarMath Incorporated | 8 |
CN
| Canadian National Railways | 5 |
CNA
| Canadian National Railways | 5 |
CNIS
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 38 |
CPAA
| Canadian Pacific Railway | 2 |
CR
| Conrail | 8 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 18 |
CUOH
| Columbus and Ohio River Railroad Company | 6 |
DH
| Delaware & Hudson | 1 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
DRGW
| Denver & Rio Grande Western | 2 |
DWC
| Canadian National Railways | 3 |
EEC
| East Erie Commercial Railroad | 3 |
FBOX
| TTX Company | 5 |
FGLK
| Finger Lakes Railway | 3 |
GKWR
| GKWR | 1 |
GMRC
| Green Mountain RR | 3 |
GNRR
| Georgia Northeastern | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 1 |
HS
| H and S Railroad Company | 6 |
IBT
| International Bridge and Terminal Company | 3 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 2 |
LW
| Louisville and Wadley Railway Company | 1 |
MB
| Meridian & Bigbee | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 2 |
ME
| Morristown & Erie Railroad | 2 |
MEC
| Maine Central | 10 |
MP
| Missouri Pacific | 3 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 32 |
NW
| Norfolk & Western | 3 |
NYC
| New York Central | 3 |
ONT
| Ontario Northland Railway | 1 |
PRR
| Pennsylvania Railroad | 1 |
RBOX
| Railbox Company | 3 |
RR
| Raritan River | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SOU
| Southern | 7 |
SP
| Southern Pacific | 6 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBOX
| TTX Company | 4 |
WC
| Wisconsin Central | 3 |
YKR
| York Rail | 2 |