| Relationships | Role | Relationship Start | Relationship End |
| Blackhawk Bancorporation | Parent | 10/26/1982 | 8/31/1988 |
| Dream, Inc. | Parent | 12/31/1981 | 10/25/1982 |
| Dream, Inc. | Parent | 12/31/1976 | 12/30/1981 |
| Dream, Inc. | Parent | 12/31/1973 | 12/30/1976 |
| Dream, Inc. | Parent | 12/31/1970 | 12/30/1973 |
| S And M Of Waterlooinc | Subsidary | 11/1/1982 | 8/31/1988 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| The First State Bank | Buyer | 121,839 | Discontinued | 9/1/1988 |