| Relationships | Role | Relationship Start | Relationship End |
| Security Bancorp, Inc. | Parent | 10/1/1982 | 5/31/1992 |
| Michigan National Bank | Parent | 12/31/1976 | 12/30/1978 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| First Of America Bank-Southeast Michigan, National Association | Buyer | 6,367,857 | Discontinued | 6/1/1992 |