AOK
| Arkansas-Oklahoma Railroad | 2 |
DWC
| Canadian National Railways | 1 |
GAEX
| General American Marks Company | 1 |
GNRR
| Georgia Northeastern | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
ONT
| Ontario Northland Railway | 16 |
SRY
| Southern Railway of British Columbia Lim | 8 |
TTZX
| TTX Company-Centerbeam Flats | 1 |
WC
| Wisconsin Central | 3 |