| Relationships | Role | Relationship Start | Relationship End |
| M&I Bank Of Onalaska | Parent | 7/1/1991 | 8/31/1994 |
| M&I Llc | Parent | 1/1/1990 | 8/31/1994 |
| Cwb Holdings - Onalaska, Inc. | Parent | 5/29/1987 | 12/31/1989 |
| Cwb Holdings - Onalaska, Inc. | Parent | 1/31/1986 | 5/28/1987 |
| Cwb Holdings - Onalaska, Inc. | Parent | 12/30/1985 | 1/30/1986 |
| Onalaska Holding Company, Inc. | Parent | 2/23/1984 | 12/29/1985 |
| M&I Bank Of Onalaska | Subsidary | 7/1/1991 | 8/31/1994 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| M&I Bank Of La Crosse | Buyer | 137,618 | Discontinued | 9/1/1994 | |
| M&I Bank Of Lacrosse | Seller | 4,952 | Discontinued | 1/1/1990 |