CIC
| Cedar Rapids & Iowa City | 1 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 2 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 1 |
DLW
| Delaware Lackawanna & Western | 1 |
NYC
| New York Central | 1 |
OHCR
| Ohio Central | 2 |
PRR
| Pennsylvania Railroad | 2 |
SBD
| Seaboard System | 2 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 1 |
UP
| Union Pacific Railroad Company | 1 |