CHV
| Chattahoochee Valley Ry | 1 |
CMIX
| Consolidated Minerals Incorporated | 1 |
CN
| Canadian National Railways | 9 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 1 |
CP
| Canadian Pacific Railway | 14 |
CR
| Conrail | 1 |
HZGX
| Herzog Contracting Corporation | 1 |
KOR
| KOR | 10 |
LBFX
| L B Foster Co | 2 |
LEN
| Lake Erie and Northern Railway Company | 1 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 6 |
SAL
| Seaboard Air Line | 1 |
SOU
| Southern | 13 |
SRS
| Sperry Rail Service | 1 |