ACL
| Atlantic Coast Line | 8 |
AMTK
| Amtrak | 2 |
ARR
| Alaska Railroad | 3 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BAR
| Bangor & Aroostook | 3 |
BCOL
| Canadian National Railways | 1 |
BK
| BK | 1 |
BLE
| Bessemer & Lake Erie | 1 |
BM
| Boston & Maine | 9 |
BN
| Burlington Northern | 10 |
BO
| Baltimore & Ohio | 1 |
BOMX
| B&O Railroad Museum Inc. | 2 |
CBQ
| Chicago Burlington & Quincy | 6 |
CMSL
| Cape May Seashore Line | 1 |
CN
| Canadian National Railways | 6 |
CNJ
| Central Rail Road of New Jersey | 3 |
CNW
| Chicago & Northwestern | 3 |
CO
| Chesapeake & Ohio | 4 |
CP
| Canadian Pacific Railway | 4 |
CR
| Conrail | 33 |
CRIP
| Chicago Rock Island & Pacific | 4 |
CSX
| CSX Railroad | 4 |
DH
| Delaware & Hudson | 2 |
DRGW
| Denver & Rio Grande Western | 2 |
FEC
| Florida East Coast | 2 |
GJ
| GJ | 1 |
GTW
| Grand Trunk Western | 8 |
GVSR
| Galveston Railroad L.P. | 1 |
KCS
| Kansas City Southern | 5 |
LN
| Louisville & Nashville | 2 |
LNE
| Lehigh and New England Ry | 1 |
LVRC
| Lamoille Valley | 1 |
MEC
| Maine Central | 14 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 1 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 1 |
OCSR
| OCSR | 3 |
PC
| Penn Central | 3 |
PGE
| Pacific Great Eastern | 1 |
PRR
| Pennsylvania Railroad | 1 |
PTM
| Portland Terminal | 1 |
PW
| Providence and Worcester | 1 |
RFP
| Richmond Fredericksburg & Potomac | 2 |
SAL
| Seaboard Air Line | 1 |
SCL
| Seaboard Coast Line | 7 |
SLSF
| Saint Louis-San Francisco | 1 |
SOU
| Southern | 3 |
SRNJ
| Southern Railroad Company of New Jersey | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TFTX
| Tifton Terminal Railway Museum | 4 |
UP
| Union Pacific Railroad Company | 4 |
VTR
| Vermont Railway | 1 |
WAR
| Warrenton Railroad Company | 1 |
WM
| Western Maryland | 5 |
YRMX
| YRMX | 2 |