| Relationships | Role | Relationship Start | Relationship End |
| First Chicago Nbd Corporation | Parent | 12/31/1981 | 10/31/1990 |
| West Michigan Financial Corporation | Parent | 1/3/1980 | 12/30/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank One, Michigan | Buyer | 20,267,024 | Discontinued | 11/1/1990 |