| Relationships | Role | Relationship Start | Relationship End |
| Brazosport Corporation | Parent | 3/30/1984 | 12/31/1990 |
| Southwest Bancshares, Inc. | Parent | 4/12/1982 | 3/29/1984 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Ayers Branch | Buyer | Discontinued | 1/1/1991 |