ABB
| Akron and Barberton Belt Railroad Company | 1 |
AMTK
| Amtrak | 1 |
ATSF
| Atchison Topeka & Santa Fe | 8 |
BAR
| Bangor & Aroostook | 1 |
BCR
| Bay Coast Railroad | 1 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 13 |
BO
| Baltimore & Ohio | 21 |
CBQ
| Chicago Burlington & Quincy | 1 |
CC
| Chicago Central & Pacific | 4 |
CGW
| Chicago Great Western | 1 |
CN
| Canadian National Railways | 15 |
CNJ
| Central Rail Road of New Jersey | 2 |
CNW
| Chicago & Northwestern | 5 |
CO
| Chesapeake & Ohio | 15 |
CP
| Canadian Pacific Railway | 15 |
CR
| Conrail | 50 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CRR
| Clinchfield | 2 |
CSL
| Chicago Short Line Railway Company | 1 |
CSX
| CSX Railroad | 1 |
CV
| Central Vermont | 2 |
DH
| Delaware & Hudson | 12 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
DRGW
| Denver & Rio Grande Western | 2 |
EL
| Erie Lackawanna | 4 |
ERIE
| Erie Railroad | 1 |
FCCX
| Foxley Cattle Company | 2 |
GMO
| Gulf Mobile & Ohio | 1 |
GMRC
| Green Mountain RR | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 1 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 1 |
IHB
| Indiana Harbor Belt | 4 |
JEMX
| JEMX | 1 |
KCS
| Kansas City Southern | 16 |
LI
| Long Island Rail Road Company | 58 |
LN
| Louisville & Nashville | 3 |
LV
| Lehigh Valley | 13 |
ME
| Morristown & Erie Railroad | 1 |
MEC
| Maine Central | 4 |
MILW
| Milwaukee Road | 2 |
MKT
| Missouri-Kansas-Texas | 1 |
MNCW
| Metro-North Commuter Railroad | 1 |
MNS
| Minneapolis Northfield & Southern | 1 |
MP
| Missouri Pacific | 9 |
NCSL
| Nashville Chattanooga & St Louis | 1 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 14 |
NYSW
| New York Susquehanna & Western | 4 |
OHCR
| Ohio Central | 1 |
PC
| Penn Central | 1 |
PRR
| Pennsylvania Railroad | 2 |
PT
| Peninsula Terminal Company | 1 |
PW
| Providence and Worcester | 1 |
PWV
| Pittsburgh & West Virginia | 2 |
RFP
| Richmond Fredericksburg & Potomac | 2 |
RSR
| Rochester and Southern Railroad | 1 |
SBD
| Seaboard System | 6 |
SCL
| Seaboard Coast Line | 3 |
SLSF
| Saint Louis-San Francisco | 3 |
SOO
| Soo Line | 7 |
SOU
| Southern | 15 |
SP
| Southern Pacific | 3 |
TTX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 17 |
WP
| Western Pacific | 1 |
WPYR
| White Pass & Yukon Route | 1 |