| Relationships | Role | Relationship Start | Relationship End |
| Ifrb Corporation | Parent | 6/6/1987 | 4/29/1988 |
| Interfirst Corporation | Parent | 8/17/1973 | 6/5/1987 |
| Interfirst Securities Co In Dallas | Parent | 8/23/1963 | 8/16/1973 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| First Republicbank Dallas, National Association | Buyer | 17,085,655 | Discontinued | 4/30/1988 |