| Relationships | Role | Relationship Start | Relationship End |
| M&I Llc | Parent | 2/28/1988 | 7/31/1990 |
| Central Wisconsin Bankshares, Inc. | Parent | 12/3/1979 | 2/27/1988 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| M&I Merchants Bank | Buyer | 261,172 | Discontinued | 8/1/1990 |