| Relationships | Role | Relationship Start | Relationship End |
| Mercantile Bancorporation Inc. Of Iowa | Parent | 1/2/1996 | 8/16/1996 |
| Hawkeye Bancorporation | Parent | 1/1/1984 | 1/1/1996 |
| Washington Bancorporation | Parent | 12/31/1978 | 12/31/1983 |
| Washington Bancorporation | Parent | 6/30/1977 | 12/30/1978 |
| Hawkeye Agricultural Credit Corporation | Subsidary | 9/30/1978 | 12/30/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Mercantile Bank Of Eastern Iowa | Buyer | 1,498,426 | Pooling of Interests | Discontinued | 8/17/1996 |
| Ainsworth State Bank | Seller | 8,017 | Discontinued | 4/2/1977 |