AGR
| Alabama and Gulf Coast | 7 |
AM
| Arkansas & Missouri | 1 |
AMTK
| Amtrak | 1 |
ATW
| Atlantic and Western | 3 |
BCOL
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 5 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 2 |
CIC
| Cedar Rapids & Iowa City | 2 |
CIRR
| Chattahoochee Industrial Railroad | 2 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 1 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 11 |
DH
| Delaware & Hudson | 1 |
DRGW
| Denver & Rio Grande Western | 2 |
DUPX
| Du Pont De Nemours and Company Incorporated | 4 |
DWC
| Canadian National Railways | 1 |
EEC
| East Erie Commercial Railroad | 1 |
EPRY
| East Penn Railway | 1 |
FBOX
| TTX Company | 1 |
FSRR
| FerroSur | 1 |
GMRC
| Green Mountain RR | 2 |
HS
| H and S Railroad Company | 2 |
IANR
| Iowa Northern Ry | 1 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 1 |
LRS
| Laurinburg and Southern | 4 |
LRWN
| Little Rock & Western | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 4 |
MEC
| Maine Central | 2 |
MP
| Missouri Pacific | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 3 |
RBOX
| Railbox Company | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SOU
| Southern | 12 |
SP
| Southern Pacific | 3 |
SRNJ
| Southern Railroad Company of New Jersey | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TASD
| Terminal Alabama State Docks | 1 |
TBOX
| TTX Company | 3 |
TRMX
| The Railroad Museum-TRM Industries | 2 |
TSRD
| Twin State Railroad Company | 1 |
UP
| Union Pacific Railroad Company | 2 |
WCRL
| West Chester Railroad Company | 1 |