AA
| Ann Arbor | 2 |
ADN
| Ashley Drew & Northern | 1 |
AHW
| Fox Valley and Western Limited | 1 |
AMC
| Arkansas Louisiana and Mississippi Railr | 2 |
AMR
| Arcata & Mad River | 2 |
AMTK
| Amtrak | 1 |
AN
| Apalachicola Northern | 1 |
APA
| Apache Railway Company | 1 |
ASAB
| Bay Line Railroad LLC | 1 |
ATSF
| Atchison Topeka & Santa Fe | 3 |
AVL
| Aroostook Valley Railroad Company | 1 |
AWP
| Atlanta & West Point | 1 |
BCOL
| Canadian National Railways | 1 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 2 |
BO
| Baltimore & Ohio | 3 |
CBCX
| Morton International | 1 |
CBQ
| Chicago Burlington & Quincy | 10 |
CCR
| Corinth & Counce | 1 |
CEI
| Chicago & Eastern Illinois | 1 |
CHP
| Ferrocarriles Nacionales de Mexico | 1 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CLC
| Columbia and Cowlitz Railway Company | 1 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 9 |
CO
| Chesapeake & Ohio | 3 |
CP
| Canadian Pacific Railway | 2 |
CPI
| Canadian Pacific Railway | 1 |
CPLT
| CAMINO, PLACERVILLE & LAKE TAHOE RAILROAD CO. | 1 |
CR
| Conrail | 1 |
CRDX
| Chicago Freight Car Leasing Company | 1 |
CSS
| Chicago South Shore And South Bend | 3 |
CSX
| CSX Railroad | 1 |
CWRC
| CENTRAL WISCONSIN RAILROAD | 1 |
DC
| Delray Connecting Railroad Company | 2 |
DHNY
| Canadian Pacific (Delaware and Hudson Railway Company Incorp | 4 |
DKS
| Union Pacific Railroad Company | 3 |
DRGW
| Denver & Rio Grande Western | 1 |
EACH
| East Camden and Highland | 1 |
EEC
| East Erie Commercial Railroad | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 5 |
ERES
| Erie Western | 1 |
ERIE
| Erie Railroad | 3 |
FEC
| Florida East Coast | 3 |
FFIX
| Procor Limited | 1 |
FWD
| Fort Worth & Denver | 1 |
GBW
| Green Bay & Western | 3 |
GBX
| GBX | 1 |
GETY
| Gettysburg Railroad | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 4 |
GRN
| Greenville & Northern | 2 |
GTW
| Grand Trunk Western | 3 |
GWR
| Great Western Railway Company | 1 |
HCRC
| Hillsdale County Ry. Co., Inc. | 2 |
HOSC
| HOSC | 4 |
HS
| H and S Railroad Company | 2 |
IAIS
| Iowa Interstate | 1 |
IAT
| IOWA TRACTION RAILROAD CO | 1 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 4 |
IHRC
| Indiana Hi Rail | 2 |
KELX
| Kellogg Company | 1 |
LC
| Lancaster & Chester | 1 |
LN
| Louisville & Nashville | 1 |
LNAC
| Chattahoochee Bay Railroad, LLC | 1 |
LOAM
| Lousiana Midland | 3 |
LPN
| Longview, Portland & Northern | 1 |
LRS
| Laurinburg and Southern | 1 |
LSI
| Lake Superior and Ishpeming Railroad | 1 |
LV
| Lehigh Valley | 1 |
LVRC
| Lamoille Valley | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 3 |
MNJ
| Middletown & New Jersey Railroad | 1 |
MNS
| Minneapolis Northfield & Southern | 2 |
MP
| Missouri Pacific | 4 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
MR
| McCloud Railway Company | 2 |
MSV
| Mississippi and Skuna Valley Railroad Co | 2 |
MTW
| Marinette Tomahawk & Western | 1 |
NHIR
| New Hope & Ivyland | 1 |
NN
| Northern Nevada Railroad Corporation | 2 |
NP
| Northern Pacific | 5 |
NS
| Norfolk Southern | 1 |
NSL
| St. Lawrence and Raquette River Railroad | 2 |
NSRC
| North Stratford RR | 2 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 3 |
NYSW
| New York Susquehanna & Western | 2 |
ONT
| Ontario Northland Railway | 1 |
ONW
| Oregon & Northwestern | 1 |
OTDX
| Greenbrier Leasing Corporation | 1 |
PC
| Penn Central | 2 |
PLCX
| General Electric Rail Services | 1 |
PLE
| Pittsburgh & Lake Erie | 1 |
PLEX
| CIT Group/Capital Finance, Inc | 1 |
POTB
| Port of Tillamook Bay | 3 |
PRR
| Pennsylvania Railroad | 2 |
PW
| Providence and Worcester | 1 |
QC
| Quebec Central | 2 |
QOCX
| Quaker Oats Company | 1 |
SBD
| Seaboard System | 10 |
SBVR
| South Branch Valley Rail Road | 2 |
SCL
| Seaboard Coast Line | 2 |
SERA
| Sierra Northern Railway | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SM
| St. Marys Railroad | 3 |
SNCT
| Seattle & North Coast R.R. Co. | 3 |
SOO
| Soo Line | 7 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 5 |
SSDK
| Savannah State Docks Railroad Company | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
STE
| Stockton Terminal and Eastern RR | 1 |
STMA
| St. Maries River Railroad Company | 2 |
TM
| Texas-Mexican | 3 |
TNCX
| General Electric Rail Services | 1 |
TOC
| Toledo & Ohio Central | 1 |
TSBY
| Great Lakes Central Railroad | 1 |
TSE
| Texas South-Eastern Railroad Company | 1 |
UMP
| Upper Merion and Plymouth Railroad | 1 |
UP
| Union Pacific Railroad Company | 8 |
USLX
| General Electric Rail Services | 5 |
VAMD
| Virginia and Maryland | 1 |
VC
| Virginia Central Railway | 3 |
VNO
| VNO | 1 |
WAB
| Wabash | 2 |
WC
| Wisconsin Central | 2 |
WICT
| Wisconsin & Calumet | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WP
| Western Pacific | 2 |
WRWK
| Providence & Worchester Railroad | 1 |
WVRC
| WABASH VALLEY RAILROAD CO. | 5 |