| Relationships | Role | Relationship Start | Relationship End |
| National Bancshares Corporation Of Texas | Parent | 3/21/1986 | 6/1/1990 |
| First Bancshares Of Sequin | Parent | 1/25/1982 | 3/20/1986 |
| Southwestern Venture Capital Of Texas Inc | Subsidary | 2/17/1982 | 12/15/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Nationsbank Of Texas, National Association | Buyer | 62,921,254 | Failure | 6/2/1990 |