CBQ
| Chicago Burlington & Quincy | 2 |
CN
| Canadian National Railways | 5 |
CNW
| Chicago & Northwestern | 1 |
CR
| Conrail | 14 |
CRIP
| Chicago Rock Island & Pacific | 8 |
DH
| Delaware & Hudson | 1 |
DTI
| Detroit Toledo & Ironton | 1 |
GN
| Great Northern | 3 |
IAIS
| Iowa Interstate | 6 |
IC
| Illinois Central | 7 |
LIRR
| Long Island Railroad | 2 |
MNS
| Minneapolis Northfield & Southern | 33 |
MNTX
| Minnesota Transportation Museum, Inc. | 33 |
MON
| Monon Route | 3 |
NKP
| Nickel Plate | 3 |
NS
| Norfolk Southern | 4 |
PPCX
| AAPRCO Register Private Cars | 3 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
RGS
| Rio Grande Southern | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SCL
| Seaboard Coast Line | 4 |
TSE
| Texas South-Eastern Railroad Company | 2 |
UP
| Union Pacific Railroad Company | 1 |
WE
| Wheeling & Lake Erie | 1 |