| Relationships | Role | Relationship Start | Relationship End |
| Hawkeye Bancorporation | Parent | 1/1/1984 | 2/6/1987 |
| Second Bancorporation | Parent | 12/18/1974 | 12/31/1983 |
| Hawkeye Agricultural Credit Corporation | Subsidary | 12/31/1980 | 2/6/1987 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| F&M Bank-Iowa Central | Buyer | 469,960 | Discontinued | 2/7/1987 | |
| First National Bank Of Eldora | Seller | 7,615 | Failure | 10/9/1973 |