| Relationships | Role | Relationship Start | Relationship End |
| Banc One Wisconsin Corporation | Parent | 6/25/1996 | 12/7/1996 |
| Banc One Wisconsin Corporation | Parent | 3/28/1990 | 6/24/1996 |
| Marisub Of Wisconsin, Inc. | Parent | 9/23/1985 | 3/27/1990 |
| Firstar Corporation | Parent | 12/31/1983 | 9/22/1985 |
| Firstar Corporation | Parent | 12/31/1982 | 12/30/1983 |
| Firstar Corporation | Parent | 12/31/1981 | 12/30/1982 |
| Firstar Corporation | Parent | 3/15/1979 | 12/30/1981 |
| Oshkosh Investment Holding Company | Subsidary | 10/1/1989 | 12/7/1996 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank One, Milwaukee, National Association | Buyer | 5,354,275 | Pooling of Interests | Discontinued | 12/8/1996 |
| Community Savings And Loan Association | Seller | 141,431 | Failure | 2/10/1990 |