ABOX
| TTX Company | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
CNA
| Canadian National Railways | 1 |
CRIP
| Chicago Rock Island & Pacific | 1 |
DWC
| Canadian National Railways | 3 |
HS
| H and S Railroad Company | 1 |
ICG
| Illinois Central Gulf | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 4 |
NH
| New Haven | 2 |
SLGG
| Progress Rail Services Corporation | 2 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 1 |