| Relationships | Role | Relationship Start | Relationship End |
| Whitney Holding Corporation | Parent | 4/7/1989 | 6/29/1991 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Whitney National Bank | Buyer | 11,477,590 | Discontinued | 6/30/1991 | |
| St. Tammany National Bank | Seller | 47,115 | Failure | 4/7/1989 |