ATW
| Atlantic and Western | 1 |
BKTY
| Union Pacific Railroad Company | 2 |
BM
| Boston & Maine | 6 |
BNSF
| BNSF Railway | 1 |
CPAA
| Canadian Pacific Railway | 2 |
CSX
| CSX Railroad | 39 |
DME
| Dakota, Minnesota and Eastern | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 1 |
NS
| Norfolk Southern | 1 |
SOU
| Southern | 8 |