| Relationships | Role | Relationship Start | Relationship End |
| Lower Rio Grande Valley Bancshares | Parent | 9/30/1982 | 5/17/1998 |
| National Bancshares Corporation Of Texas | Parent | 12/31/1978 | 12/30/1979 |
| Val Banco Inc | Subsidary | 9/30/1982 | 4/30/1985 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| The Harlingen National Bank | Buyer | 203,395 | Acquisition | Discontinued | 5/18/1998 |
| The Hidalgo County Bank And Trust Company | Seller | 18,879 | Failure | 7/27/1989 |