ARR
| Alaska Railroad | 3 |
BAR
| Bangor & Aroostook | 2 |
BB
| Buckingham Branch | 2 |
BCOL
| Canadian National Railways | 5 |
BM
| Boston & Maine | 3 |
BN
| Burlington Northern | 2 |
BO
| Baltimore & Ohio | 2 |
CACV
| Cooperstown and Charlotte Valley | 1 |
CKIX
| C.K. Industries | 1 |
CN
| Canadian National Railways | 3 |
CP
| Canadian Pacific Railway | 5 |
CR
| Conrail | 4 |
CRR
| Clinchfield | 1 |
CS
| Colorado & Southern | 1 |
DH
| Delaware & Hudson | 11 |
DHNY
| Canadian Pacific (Delaware and Hudson Railway Company Incorp | 1 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
DRGW
| Denver & Rio Grande Western | 4 |
FCCA
| FCCA | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 4 |
MNCW
| Metro-North Commuter Railroad | 1 |
NSRC
| North Stratford RR | 1 |
NYC
| New York Central | 1 |
NYSW
| New York Susquehanna & Western | 2 |
ONR
| ONR | 1 |
ONT
| Ontario Northland Railway | 7 |
PLE
| Pittsburgh & Lake Erie | 2 |
PRR
| Pennsylvania Railroad | 2 |
RBMN
| Reading Blue Mountain & Northern | 3 |
RCPX
| Railcar Limited | 1 |
SBR
| SBR | 4 |
SCL
| Seaboard Coast Line | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SOU
| Southern | 6 |
TCAX
| General Electric Rail Services | 1 |
VALE
| Valley Railroad Company | 1 |
WECX
| Westinghouse Electric Corporation | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WPYR
| White Pass & Yukon Route | 1 |