ACL
| Atlantic Coast Line | 1 |
ADN
| Ashley Drew & Northern | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 1 |
BAR
| Bangor & Aroostook | 7 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 1 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 2 |
DH
| Delaware & Hudson | 1 |
DHNY
| Canadian Pacific (Delaware and Hudson Railway Company Incorp | 1 |
DLW
| Delaware Lackawanna & Western | 1 |
GTW
| Grand Trunk Western | 1 |
HERX
| General Electric Rail Services Corporation | 1 |
LVRC
| Lamoille Valley | 1 |
MEC
| Maine Central | 7 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
MRS
| Manufacturers Railway | 1 |
NSL
| St. Lawrence and Raquette River Railroad | 1 |
PC
| Penn Central | 3 |
PRR
| Pennsylvania Railroad | 2 |
PW
| Providence and Worcester | 1 |
RBOX
| Railbox Company | 1 |
SJL
| St Johnsbury & Lamoille County RR | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOO
| Soo Line | 2 |
SOU
| Southern | 2 |
VTR
| Vermont Railway | 2 |