AMTK
| Amtrak | 2 |
ATSF
| Atchison Topeka & Santa Fe | 3 |
BAP
| Butte Anaconda & Pacific | 1 |
CBRL
| CBRL | 1 |
DAFX
| Department of Defence Troop Support and Aviation Material Re | 2 |
FEC
| Florida East Coast | 7 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 1 |
HSRR
| Hardin Southern Railroad Incorporated | 1 |
IC
| Illinois Central | 2 |
KJR
| Kiski Junction Railroad | 1 |
MILW
| Milwaukee Road | 2 |
NP
| Northern Pacific | 1 |
PC
| Penn Central | 2 |
PT
| Peninsula Terminal Company | 1 |
SP
| Southern Pacific | 3 |