| Relationships | Role | Relationship Start | Relationship End |
| Houston Bancshares Inc | Parent | 3/7/1983 | 4/1/1987 |
| Great Southern Bancshares, Inc. | Parent | 5/30/1980 | 3/6/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Banctexas Houston, National Association | Buyer | 175,653 | Discontinued | 4/2/1987 |