AOK
| Arkansas-Oklahoma Railroad | 39 |
BCOL
| Canadian National Railways | 10 |
CN
| Canadian National Railways | 21 |
CNA
| Canadian National Railways | 15 |
CNIS
| Canadian National Railways | 1 |
CRLE
| Coe Rail Incorporated | 9 |
CSX
| CSX Railroad | 1 |
DME
| Dakota, Minnesota and Eastern | 1 |
DWC
| Canadian National Railways | 5 |
GTRA
| Golden Triangle Railroad | 9 |
GTW
| Grand Trunk Western | 2 |
HLMX
| Helm Financial Corporation | 9 |
HS
| H and S Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 5 |
IC
| Illinois Central | 5 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 3 |
LW
| Louisville and Wadley Railway Company | 5 |
MEC
| Maine Central | 4 |
NADX
| General Electric Rail Services | 4 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 3 |
SLGG
| Progress Rail Services Corporation | 5 |
TBOX
| TTX Company | 1 |
WC
| Wisconsin Central | 11 |