| Relationships | Role | Relationship Start | Relationship End |
| Society Bancorp Of Michigan, Inc. | Parent | 3/31/1987 | 5/15/1988 |
| Commercial Bankshares Corp. | Parent | 1/31/1984 | 3/30/1987 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Society Bank, Lenawee | Buyer | 179,351 | Discontinued | 5/16/1988 |