| Relationships | Role | Relationship Start | Relationship End |
| Mercantile Bank Of St. Louis National Association | Parent | 3/13/1986 | 3/31/1999 |
| Mercantile Trust Company National Association | Parent | 12/31/1976 | 12/30/1983 |
| Mercantile Bancorporation Inc. | Parent | 5/10/1972 | 12/30/1976 |
| Mercantile Mortgage Investment Company, Inc. | Subsidary | 7/1/1996 | 1/14/1999 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Mark Twain St. Louis Investment | Buyer | Discontinued | 4/1/1999 |