| Relationships | Role | Relationship Start | Relationship End |
| Boatmen's Bancshares, Inc. | Parent | 3/29/1986 | 7/17/1992 |
| Boatmen's Bancshares, Inc. | Parent | 8/9/1974 | 3/28/1986 |
| U. N. Bancshares, Inc. | Parent | 8/1/1973 | 8/8/1974 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Boatmen's Bank Of Southern Missouri | Buyer | 1,297,761 | Discontinued | 7/18/1992 | |
| Boatmen's Bank Of Crane | Seller | 26,823 | Discontinued | 3/12/1990 |