| Relationships | Role | Relationship Start | Relationship End |
| First Security National Corporation | Parent | 12/3/1979 | 9/29/1988 |
| First Security National Corporation | Parent | 1/18/1974 | 12/2/1979 |
| Interfirst Securities Co In Dallas | Parent | 4/16/1965 | 1/17/1974 |
| Dynamerica Corporation | Parent | 12/31/1973 | 1/17/1974 |
| Dynamerica Corporation | Parent | 10/30/1972 | 12/30/1973 |
| Interfirst Securities Co In Dallas | Parent | 7/24/1964 | 4/15/1965 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| First City, Texas - Dallas | Buyer | 1,359,158 | Discontinued | 9/30/1988 |