| A | |
| AAR | Association of American Railroads |
| ACL | Atlantic Coast Line |
| ART | American Refrigerator Transit Company |
| ATSF | Atchison, Topeka & Santa Fe Railroad |
| B | |
| C | |
| D | |
| E | |
| F | |
| FGE | Fruit Growers Express |
| G | |
| GACX | General Service Freight Cars, primäre Bezeichnung für Güterwagen der GATX |
| GAT | General American Transportation GATX, |
| GATX | Tank Cars der GATX, |
| GGPX | Hopper Cars der GATX, |
| GIMX | Intermodal Cars der GATX, |
| GMTX | Lokomotiven der GATX, |
| GPFX | Pressure-differential Cars der GATX, |
| GPLX | Plastic Pellet Cars der GATX, |
| H | |
| I | |
| J | |
| K | |
| L | |
| LLPX | Lokomotiven der GATX, |
| M | |
| N | |
| O | |
| P | |
| PFE | Pacific Fruit Express |
| Q | |
| R | |
| REA | Railway Express Agency |
| S | |
| SFRD | Santa Fe Refrigerator Despatch |
| SP | Southern Pacific Railroad |
| T | |
| TTC | Trailer Train Company |
| U | |
| UP | Union Pacific Railroad |
| URTX | Union Refrigerator Transit |
| V | |
| W | |
| WRX | Western Refrigerator Line |
