| Relationships | Role | Relationship Start | Relationship End |
| C.S.B. Bancorporation, Inc. | Parent | 3/11/1985 | 9/30/1987 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| The First National Bank In Creston | Buyer | 228,289 | Discontinued | 10/1/1987 | |
| Commercial State Bank | Seller | 16,260 | Failure | 3/11/1985 |