| Relationships | Role | Relationship Start | Relationship End |
| First Interstate Of Iowa, Inc. | Parent | 2/27/1978 | 6/30/1991 |
| Associated Bank Corporation | Parent | 4/20/1977 | 2/26/1978 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Boatmen's Bank Of North Iowa | Buyer | 226,729 | Discontinued | 7/1/1991 |