BCIT
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 1 |
BM
| Boston & Maine | 4 |
CNW
| Chicago & Northwestern | 1 |
CR
| Conrail | 1 |
IBT
| International Bridge and Terminal Company | 1 |
MEC
| Maine Central | 3 |
NH
| New Haven | 1 |
NSS
| Newburgh and South Shore Ry. Co. | 1 |
PC
| Penn Central | 2 |
TBOX
| TTX Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |