| Relationships | Role | Relationship Start | Relationship End |
| Mercantile Bancorporation Inc. | Parent | 2/28/1981 | 11/22/1984 |
| Peoples Bancorp, Inc. | Parent | 1/1/1978 | 2/27/1981 |
| Peoples Bancorp, Inc. | Parent | 1/1/1976 | 12/31/1977 |
| Peoples Bancorp, Inc. | Parent | 12/31/1970 | 12/31/1975 |
| Facilities Realty Company | Subsidary | 2/28/1981 | 11/22/1984 |
| Facilities Realty Company, Inc. | Subsidary | 9/9/1972 | 2/28/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Mercantile Regional Bank | Buyer | 162,712 | Discontinued | 11/23/1984 |