ATSF
| Atchison Topeka & Santa Fe | 5 |
BN
| Burlington Northern | 3 |
BO
| Baltimore & Ohio | 3 |
BPRR
| Buffalo and Pittsburgh | 1 |
CASS
| Cass Scenic | 3 |
CBQ
| Chicago Burlington & Quincy | 2 |
CGW
| Chicago Great Western | 1 |
CR
| Conrail | 2 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CSX
| CSX Railroad | 2 |
DODX
| Department Of Defense | 1 |
IAIS
| Iowa Interstate | 2 |
IHB
| Indiana Harbor Belt | 5 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
NKP
| Nickel Plate | 4 |
NS
| Norfolk Southern | 3 |
NW
| Norfolk & Western | 10 |
NYC
| New York Central | 1 |
PC
| Penn Central | 6 |
PRR
| Pennsylvania Railroad | 7 |
SOO
| Soo Line | 1 |
URR
| Union Railroad | 3 |
WM
| Western Maryland | 1 |
WNYP
| Western New York and Pennsylvania | 1 |