| Relationships | Role | Relationship Start | Relationship End |
| South Texas Bancshares, Inc. | Parent | 6/15/1981 | 12/30/1991 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| The Commercial National Bank Of Beeville | Buyer | 141,612 | Discontinued | 12/31/1991 |