| Relationships | Role | Relationship Start | Relationship End |
| Firstar Corporation Of Wisconsin | Parent | 12/24/1985 | 11/19/1989 |
| Security Financial Services, Inc. | Parent | 12/31/1981 | 12/23/1985 |
| Security Financial Services, Inc. | Parent | 6/15/1970 | 12/30/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Firstar Bank Sheboygan, National Association | Buyer | 606,260 | Discontinued | 11/20/1989 |