| Relationships | Role | Relationship Start | Relationship End |
| Firstar Corporation | Parent | 12/11/1999 | 6/22/2000 |
| Ameribanc, Inc. | Parent | 7/1/1998 | 12/10/1999 |
| Central Banc Systems, Inc. | Parent | 6/30/1984 | 6/30/1998 |
| Central Bank-Granite City | Parent | 3/31/1983 | 6/29/1984 |