| Relationships | Role | Relationship Start | Relationship End |
| M&I Llc | Parent | 2/28/1988 | 4/30/1988 |
| Central Wisconsin Bankshares, Inc. | Parent | 12/31/1970 | 2/27/1988 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Marshall & Ilsley Trust Company | Buyer | Discontinued | 5/1/1988 |