BCOL
| Canadian National Railways | 4 |
BN
| Burlington Northern | 3 |
BR
| Buffalo and Pittsburgh | 1 |
CBRY
| Copper Basin Railway | 3 |
CNA
| Canadian National Railways | 1 |
CSX
| CSX Railroad | 1 |
HLSC
| Hampton Railway Incorporated | 7 |
MMA
| Montreal, Maine & Atlantic | 1 |
MSRC
| Kansas City Southern | 3 |
MSV
| Mississippi and Skuna Valley Railroad Co | 1 |
NOKL
| Northwestern Oklahoma | 1 |
SRY
| Southern Railway of British Columbia Lim | 1 |
TTZX
| TTX Company-Centerbeam Flats | 14 |
UP
| Union Pacific Railroad Company | 4 |
WCRC
| Washington Central | 2 |