| 1 | JTHX | Citicorp Railmark, Inc. | 1/1994; eliminated 7/1996; 7/2000-7/2005 (not listed) | | NAKINA |
| 2 | JTHX | Railmark | added 1/1989 | | NAKINA |
| 3 | JTHX | Merchants Investment Co. | added 7/1984; eliminated 1/1989 | | NAKINA |
| 4 | JTHX | Thomas D. Hicks | added 1/1969; 4/1970-1/1980; eliminated 7/1984 | | NAKINA |
| 5 | JTHX | Thomas D. Hicks | added 1/69; 4/70-1/80; eliminated 7/84 | | NRHS |
| 6 | JTHX | Merchants Investment Co. | added 7/84; eliminated 1/89 | | NRHS |
| 7 | JTHX | Railmark | added 1/89 | | NRHS |
| 8 | JTHX | Citicorp Railmark, Inc. | 1/94; eliminated 7/96; 7/2000 | | NRHS |
| 9 | JTHX | *THOMAS D. HICKS | | | PWRC |
| 10 | JTHX | +CITICORP RAILMARK, INC. [MERCHANTS INVESTMENT CO.] | | | PWRC |
| 11 | JTHX | Thomas D. Hicks, Citicorp Railmark | | | RSRV |
| 12 | JTHX | CITICORP RAILMARK, INC. | | | SCAC4 |
