ALNX
| Alberta Government | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BO
| Baltimore & Ohio | 2 |
CN
| Canadian National Railways | 1 |
CNWX
| Canadian Wheat Board | 1 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 16 |
DSSX
| Detroit Salt Company, L.C. | 4 |
GFSX
| General American Marks Company | 1 |
ICG
| Illinois Central Gulf | 1 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 3 |
SCL
| Seaboard Coast Line | 1 |
TSBY
| Great Lakes Central Railroad | 4 |