AA
| Ann Arbor | 2 |
ALAB
| Alabama Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 4 |
BGFX
| Barnabus Group Foundation | 1 |
BM
| Boston & Maine | 11 |
BN
| Burlington Northern | 14 |
BO
| Baltimore & Ohio | 16 |
BOSC
| BOSC | 1 |
CC
| Chicago Central & Pacific | 5 |
CERA
| Central RR of Indianapolis | 1 |
CGW
| Chicago Great Western | 2 |
CKSI
| Carthage Knightstown and Shirley Railroad | 1 |
CN
| Canadian National Railways | 5 |
CNUR
| C and NC Railroad Corporation | 1 |
CO
| Chesapeake & Ohio | 24 |
CP
| Canadian Pacific Railway | 5 |
CR
| Conrail | 85 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CRL
| Chicago Rail Link | 1 |
CSS
| Chicago South Shore And South Bend | 1 |
CSX
| CSX Railroad | 9 |
CV
| Central Vermont | 1 |
CWP
| Chicago West Pullman & Southern | 1 |
DH
| Delaware & Hudson | 24 |
DLW
| Delaware Lackawanna & Western | 1 |
DODX
| Department Of Defense | 1 |
DRGW
| Denver & Rio Grande Western | 7 |
DTI
| Detroit Toledo & Ironton | 9 |
EJE
| Elgin Joliet and Eastern | 1 |
EL
| Erie Lackawanna | 1 |
ERIE
| Erie Railroad | 2 |
FWD
| Fort Worth & Denver | 1 |
GSOR
| Indiana Hi-Rail Corporation | 1 |
GT
| Grand Trunk Railway | 1 |
GTW
| Grand Trunk Western | 7 |
IC
| Illinois Central | 2 |
ICC
| ICC | 1 |
ICG
| Illinois Central Gulf | 5 |
IHRC
| Indiana Hi Rail | 2 |
IN
| Indiana Northeastern | 1 |
ITC
| Illinois Terminal Railroad | 1 |
JJRR
| J and J Railroad | 2 |
KBS
| KBS | 1 |
KCS
| Kansas City Southern | 5 |
KLSC
| Kalamazoo Lake Shore and Chicago Railway | 1 |
LN
| Louisville & Nashville | 4 |
LNE
| Lehigh and New England Ry | 2 |
LNW
| Louisiana & Northwestern | 3 |
LV
| Lehigh Valley | 2 |
ME
| Morristown & Erie Railroad | 1 |
MEC
| Maine Central | 6 |
MKT
| Missouri-Kansas-Texas | 1 |
MNC
| Missouri North Central RR | 2 |
MNS
| Minneapolis Northfield & Southern | 1 |
MP
| Missouri Pacific | 9 |
MSO
| Michigan Southern | 3 |
NJ
| Delaware and Hudson Railway Company Incorporated | 1 |
NKP
| Nickel Plate | 2 |
NS
| Norfolk Southern | 9 |
NW
| Norfolk & Western | 54 |
NYSW
| New York Susquehanna & Western | 1 |
OHCR
| Ohio Central | 2 |
PAL
| Paducah & Louisville | 3 |
PC
| Penn Central | 1 |
PLE
| Pittsburgh & Lake Erie | 3 |
PNSX
| Chem-Nuclear Systems LLC | 1 |
PREX
| Pioneer Rail Equipment | 1 |
PRR
| Pennsylvania Railroad | 3 |
PS
| Pittsburg and Shawmut Railroad Company | 5 |
PVT
| PVT | 1 |
PWV
| Pittsburgh & West Virginia | 1 |
RUTL
| RUTL | 2 |
SBD
| Seaboard System | 9 |
SCL
| Seaboard Coast Line | 5 |
SOO
| Soo Line | 3 |
SOU
| Southern | 6 |
SP
| Southern Pacific | 1 |
TPP
| TPP | 1 |
TPW
| Toledo Peoria & Western | 3 |
TTX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 4 |
UTAH
| Utah Railway | 1 |
WAB
| Wabash | 4 |
WBCR
| Wabash Central | 1 |
WICT
| Wisconsin & Calumet | 1 |
WM
| Western Maryland | 1 |
WVRC
| WABASH VALLEY RAILROAD CO. | 2 |
WWV
| Walla Walla Valley | 4 |