| Relationships | Role | Relationship Start | Relationship End |
| Mercantile Bank Of St. Louis National Association | Parent | 3/13/1986 | 12/17/1998 |
| Mercantile Trust Company National Association | Parent | 12/31/1976 | 3/12/1986 |
| Mercantile Bancorporation Inc. | Parent | 3/11/1971 | 12/30/1976 |
| Mississippi Valley Company | Subsidary | 12/31/1976 | 12/10/1994 |
| Plaza Loan And Safe Deposit Company | Subsidary | 12/31/1976 | 12/13/1989 |
| Mercantile Hotel Company | Subsidary | 12/31/1976 | 10/14/1981 |