| Relationships | Role | Relationship Start | Relationship End |
| Lower Rio Grande Valley Bancshares | Parent | 10/4/1982 | 11/20/1987 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Firstbank | Buyer | 234,029 | Discontinued | 11/21/1987 |
| Relationships | Role | Relationship Start | Relationship End |
| Lower Rio Grande Valley Bancshares | Parent | 10/4/1982 | 11/20/1987 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Firstbank | Buyer | 234,029 | Discontinued | 11/21/1987 |