FRVT
| Fore River Transportation Corporation | 2 |
GU
| Grafton and Upton Railroad Company | 2 |
MBA
| MBA | 3 |
MBTA
| Massachusetts Bay Transit Authority | 6 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 2 |
NH
| New Haven | 2 |
NYC
| New York Central | 3 |
PVRR
| Pioneer Valley Railroad Company Incorporated | 2 |