| Relationships | Role | Relationship Start | Relationship End |
| First Chicago Nbd Corporation | Parent | 12/31/1983 | 10/31/1990 |
| West Michigan Financial Corporation | Parent | 4/26/1973 | 12/1/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank One, Michigan | Buyer | 20,267,024 | Discontinued | 11/1/1990 | |
| Nbd Roscommon Bank | Seller | 144,482 | Discontinued | 1/1/1989 | |
| Nbd Evart Bank, National Association | Seller | 34,260 | Discontinued | 9/1/1987 | |
| Kalkaska State Bank | Seller | Discontinued | 6/2/1969 |