| Relationships | Role | Relationship Start | Relationship End |
| Ameribanc, Inc. | Parent | 4/25/1997 | 8/22/1997 |
| Mark Twain Bancshares, Inc. | Parent | 7/31/1987 | 4/24/1997 |
| Edwardsville Management Company | Parent | 8/27/1980 | 12/31/1986 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Mercantile Bank Of St. Louis National Association | Buyer | 7,244,093 | Acquisition | Discontinued | 8/23/1997 |
| Edwardsville Plaza Branch | Seller | Discontinued | 9/19/1988 |