| 1 | THCX | The Henderson Co. | 7/1923-7/1930 | | NAKINA |
| 2 | THCX | The Henderson Co. of Maine | 7/1932 | | NAKINA |
| 3 | THCX | The Henderson Co. | 7/1935 | | NAKINA |
| 4 | THCX | Publiker Industries, Inc. | added 1/1986; 1/1994; eliminated 10/1994 | | NAKINA |
| 5 | THCX | MG Industries | 7/2000-7/2005 (not listed) | | NAKINA |
| 6 | THCX | Publiker Industries, Inc. | added 1/86; 1/94; eliminated 10/94 | | NRHS |
| 7 | THCX | MG Industries | Jul-00 | | NRHS |
| 8 | THCX | *THE HENDERSON CO. | | | PWRC |
| 9 | THCX | *PUBLICKER INDUSTRIES INC. | | | PWRC |
| 10 | THCX | +MG INDUSTRIES | | | PWRC |
| 11 | THCX | MG Industries | | | RSRV |
| 12 | THCX | MG INDUSTRIES | | | SCAC4 |