| Relationships | Role | Relationship Start | Relationship End |
| Ifrb Corporation | Parent | 6/6/1987 | 8/31/1987 |
| Interfirst Corporation | Parent | 8/2/1973 | 6/5/1987 |
| Interfirst Securities Co In Dallas | Parent | 8/9/1963 | 8/1/1973 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| First Republicbank Oak Cliff | Buyer | 531,634 | Discontinued | 9/1/1987 |