BO
| Baltimore & Ohio | 6 |
CGW
| Chicago Great Western | 1 |
CIND
| Central RR of Indiana | 1 |
CN
| Canadian National Railways | 1 |
CO
| Chesapeake & Ohio | 4 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 10 |
CSX
| CSX Railroad | 8 |
DTI
| Detroit Toledo & Ironton | 1 |
IOCR
| Indiana and Ohio Central Railroad | 2 |
NS
| Norfolk Southern | 16 |
OHCR
| Ohio Central | 5 |
OHIC
| Ohi-Rail Corporation | 1 |
OHPA
| Ohio and Pennsylvania Railroad Company | 1 |
PLE
| Pittsburgh & Lake Erie | 1 |
SOO
| Soo Line | 2 |