AGR
| Alabama and Gulf Coast | 3 |
AOK
| Arkansas-Oklahoma Railroad | 8 |
ATW
| Atlantic and Western | 10 |
CCR
| Corinth & Counce | 1 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 2 |
EEC
| East Erie Commercial Railroad | 10 |
GMRC
| Green Mountain RR | 2 |
GTRA
| Golden Triangle Railroad | 3 |
HS
| H and S Railroad Company | 7 |
KCS
| Kansas City Southern | 22 |
MDR
| Kansas City Southern | 2 |
MEC
| Maine Central | 5 |
MSDR
| Knoxville & Holston River Railroad | 2 |
NS
| Norfolk Southern | 6 |
SLC
| San Luis Central Railroad Company | 1 |
SM
| St. Marys Railroad | 1 |
VR
| Valdosta Railway | 7 |
WC
| Wisconsin Central | 8 |