AMTK
| Amtrak | 15 |
AN
| Apalachicola Northern | 1 |
BN
| Burlington Northern | 2 |
CBQ
| Chicago Burlington & Quincy | 1 |
CN
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 15 |
CP
| Canadian Pacific Railway | 1 |
CPPX
| Consolidated Papers Incorporated | 2 |
DM
| Detroit & Mackinac | 1 |
DOT
| DOT | 1 |
DSSA
| Duluth, South Shore & Atlantic | 1 |
EN
| Esquimalt & Nanaimo | 1 |
FRVR
| Fox River Valley Railroad | 3 |
GBW
| Green Bay & Western | 5 |
IAIS
| Iowa Interstate | 1 |
IATR
| Iowa Traction Railroad Company | 3 |
MEC
| Maine Central | 2 |
MILW
| Milwaukee Road | 17 |
MNS
| Minneapolis Northfield & Southern | 2 |
MWWC
| MWWC | 1 |
NAR
| Northern Alberta Railways | 1 |
NP
| Northern Pacific | 1 |
PRR
| Pennsylvania Railroad | 1 |
SOO
| Soo Line | 1 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 3 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 10 |
WSOR
| Wisconsin & Southern | 2 |