| Relationships | Role | Relationship Start | Relationship End |
| Cullen/Frost Bankers, Inc. | Parent | 1/4/1982 | 2/18/1988 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Frost Bank | Buyer | 29,633,441 | Discontinued | 2/19/1988 |
| Relationships | Role | Relationship Start | Relationship End |
| Cullen/Frost Bankers, Inc. | Parent | 1/4/1982 | 2/18/1988 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Frost Bank | Buyer | 29,633,441 | Discontinued | 2/19/1988 |