| Relationships | Role | Relationship Start | Relationship End |
| New Galveston Company, The | Parent | 5/1/1982 | 5/5/2000 |
| United States National Bancshares, Inc. | Parent | 12/31/1970 | 4/30/1982 |
| United States National Bancshares, Inc. | Parent | 12/23/1970 | 12/30/1970 |
| 2001 Market Street Joint Venture | Subsidary | 5/1/1985 | 5/5/2000 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Frost Bank | Buyer | 29,633,441 | Pooling of Interests | Discontinued | 5/6/2000 |