ACL
| Atlantic Coast Line | 2 |
AR
| Aberdeen and Rockfish | 3 |
ATW
| Atlantic and Western | 2 |
CRR
| Clinchfield | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
SAL
| Seaboard Air Line | 1 |
SBD
| Seaboard System | 1 |
SBVR
| South Branch Valley Rail Road | 1 |
SCL
| Seaboard Coast Line | 2 |
WIIX
| Williamette Industries Incorporated | 2 |