| Relationships | Role | Relationship Start | Relationship End |
| Firstar Bank Council Bluffs | Parent | 12/31/1976 | 12/31/1979 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Iowa | Buyer | 1,138,315 | Discontinued | 11/1/1989 |
| Relationships | Role | Relationship Start | Relationship End |
| Firstar Bank Council Bluffs | Parent | 12/31/1976 | 12/31/1979 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Iowa | Buyer | 1,138,315 | Discontinued | 11/1/1989 |