BN
| Burlington Northern | 1 |
CN
| Canadian National Railways | 2 |
CNIS
| Canadian National Railways | 3 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 6 |
HS
| H and S Railroad Company | 1 |
MSDR
| Knoxville & Holston River Railroad | 1 |
SOU
| Southern | 8 |
USAX
| United States Army | 2 |
WRWK
| Providence & Worchester Railroad | 1 |
YVRR
| Yadkin Valley | 3 |