AGR
| Alabama and Gulf Coast | 2 |
ATW
| Atlantic and Western | 1 |
BKTY
| Union Pacific Railroad Company | 4 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CIRR
| Chattahoochee Industrial Railroad | 8 |
CN
| Canadian National Railways | 6 |
CNA
| Canadian National Railways | 7 |
CNIS
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 13 |
CP
| Canadian Pacific Railway | 10 |
CPAA
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 92 |
CUOH
| Columbus and Ohio River Railroad Company | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
EEC
| East Erie Commercial Railroad | 2 |
FGLK
| Finger Lakes Railway | 3 |
FXE
| Ferromex | 10 |
GNRR
| Georgia Northeastern | 4 |
GNWR
| Genesee and Wyoming Railroad Company | 5 |
GTW
| Grand Trunk Western | 3 |
HESR
| Huron and Eastern | 2 |
HS
| H and S Railroad Company | 19 |
IANR
| Iowa Northern Ry | 12 |
IATR
| Iowa Traction Railroad Company | 1 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 2 |
KCS
| Kansas City Southern | 3 |
LRS
| Laurinburg and Southern | 1 |
LVRC
| Lamoille Valley | 2 |
MP
| Missouri Pacific | 1 |
MQT
| Marquette Rail | 1 |
MSDR
| Knoxville & Holston River Railroad | 4 |
NOKL
| Northwestern Oklahoma | 3 |
NOPB
| New Orleans Public Belt Railroad | 1 |
NS
| Norfolk Southern | 43 |
OAR
| Old Augusta Railroad | 1 |
POHC
| Pittsburgh & Ohio Central | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SOU
| Southern | 56 |
WCCL
| Wisconsin Central | 1 |
WGCR
| Wiregrass Central Railroad. Incorporated | 4 |
WLO
| Waterloo Railway Company (Illinois Central) | 7 |
WRWK
| Providence & Worchester Railroad | 2 |
YKR
| York Rail | 1 |