ACL
| Atlantic Coast Line | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 1 |
BO
| Baltimore & Ohio | 14 |
CCO
| Clinchfield | 1 |
CG
| Central Of Georgia | 1 |
CMPA
| Madison Railroad Division of City of Mad | 1 |
CO
| Chesapeake & Ohio | 19 |
CR
| Conrail | 3 |
CRR
| Clinchfield | 3 |
CSX
| CSX Railroad | 10 |
DUPX
| Du Pont De Nemours and Company Incorporated | 1 |
EJE
| Elgin Joliet and Eastern | 1 |
ERIE
| Erie Railroad | 1 |
EV
| Everett Railroad | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 1 |
GNRR
| Georgia Northeastern | 2 |
GSMR
| Great Smoky Mountains | 3 |
HOG
| Heart of Georgia | 2 |
HOS
| Hoosier Southern Railroad | 1 |
IBCX
| Indiana Box Car Corporation | 1 |
IC
| Illinois Central | 9 |
ICG
| Illinois Central Gulf | 5 |
INRD
| Indiana Railroad | 2 |
KT
| Kentucky and Tennessee Railway Company | 1 |
KXHR
| Knoxville & Holston River RR | 1 |
LIRC
| Louisville & Indiana | 1 |
LN
| Louisville & Nashville | 37 |
MALX
| Mid-America Locomotive and Car Repair Incorporated | 1 |
MB
| Meridian & Bigbee | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MON
| Monon Route | 1 |
NCRC
| Nebraska Central | 1 |
NCSL
| Nashville Chattanooga & St Louis | 1 |
NKP
| Nickel Plate | 4 |
NS
| Norfolk Southern | 5 |
NW
| Norfolk & Western | 6 |
NYC
| New York Central | 2 |
PAL
| Paducah & Louisville | 4 |
PM
| Pere Marquette | 1 |
PRR
| Pennsylvania Railroad | 6 |
RJCC
| R.J. Corman Railroad/Kentucky Lines | 1 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 1 |
SAL
| Seaboard Air Line | 1 |
SBD
| Seaboard System | 2 |
SC
| SC | 1 |
SCL
| Seaboard Coast Line | 11 |
SLGG
| Progress Rail Services Corporation | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 29 |
TF
| Tallulah Falls Ry. Co | 1 |
TFTX
| Tifton Terminal Railway Museum | 1 |
UOFL
| UOFL | 14 |
USAX
| United States Army | 1 |
WAB
| Wabash | 1 |
WSSB
| WSSB | 1 |
WT
| Wrightsville & Tennille | 1 |
WVRR
| Whitewater Valley Railroad | 1 |