AB
| Akron and Barberton Cluster Railway Company | 1 |
AMTK
| Amtrak | 7 |
ATSF
| Atchison Topeka & Santa Fe | 36 |
AUT
| AUT | 2 |
BN
| Burlington Northern | 37 |
BNA
| Burlington Northern Business Cars | 1 |
BO
| Baltimore & Ohio | 1 |
CBQ
| Chicago Burlington & Quincy | 15 |
CGW
| Chicago Great Western | 3 |
CN
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 9 |
CO
| Chesapeake & Ohio | 5 |
CP
| Canadian Pacific Railway | 2 |
CR
| Conrail | 1 |
CRIP
| Chicago Rock Island & Pacific | 5 |
CSS
| Chicago South Shore And South Bend | 1 |
CSX
| CSX Railroad | 1 |
DRGW
| Denver & Rio Grande Western | 12 |
GECX
| General Electric Company | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 2 |
GS
| Gloster Southern | 1 |
GSLX
| Silcott Railway Equipment Ltd | 1 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 3 |
ME
| Morristown & Erie Railroad | 2 |
MILW
| Milwaukee Road | 8 |
MP
| Missouri Pacific | 31 |
MTCX
| Mallard Transportation Company | 4 |
NERR
| Nashville and Eastern | 1 |
NN
| Northern Nevada Railroad Corporation | 2 |
NP
| Northern Pacific | 5 |
NRHS
| NRHS | 2 |
NS
| Norfolk Southern | 10 |
NW
| Norfolk & Western | 18 |
NYC
| New York Central | 3 |
PC
| Penn Central | 8 |
PNWR
| Portland and Western Railroad Incorporat | 1 |
PPCX
| AAPRCO Register Private Cars | 29 |
PRR
| Pennsylvania Railroad | 2 |
PULL
| Pullman | 2 |
RFP
| Richmond Fredericksburg & Potomac | 3 |
RGS
| Rio Grande Southern | 7 |
SBD
| Seaboard System | 2 |
SCL
| Seaboard Coast Line | 1 |
SLSF
| Saint Louis-San Francisco | 4 |
SOU
| Southern | 19 |
SP
| Southern Pacific | 25 |
SRC
| Strasburg Railroad | 2 |
TC1
| Tennessee Central | 2 |
UP
| Union Pacific Railroad Company | 31 |
UPP
| Union Pacific Passenger | 1 |
URY
| Union Ry. of Memphis | 2 |
WAB
| Wabash | 1 |
WC
| Wisconsin Central | 1 |
WYP
| WYP | 1 |