| 1 | GABX | General American Marks Co. | 7/2000-7/2005 | | NAKINA |
| 2 | GABX | General American Transportation Corp. | 1/1946-4/1961; eliminated 10/1962 | | NAKINA |
| 3 | GABX | General American Transportation Corp. —temporary expiring 30June1941 | 1/1941 | | NAKINA |
| 4 | GABX | General American Transportation Corp. | 1/52-4/61 | | NRHS |
| 5 | GABX | General American Marks Co. | Jul-00 | | NRHS |
| 6 | GABX | GENERAL AMERICAN MARKS COMPANY | | | PWRC |
| 7 | GABX | General American Marks (GATX Corporation) | | | RSRV |
| 8 | GABX | GENERAL AMERICAN MARKS COMPANY | | | SCAC4 |