| Relationships | Role | Relationship Start | Relationship End |
| Boatmen's Kansas, Inc. | Parent | 12/31/1987 | 6/16/1996 |
| Serco Investment Company | Parent | 12/31/1970 | 8/1/1978 |
| Bbi Merchant Processing Company, Llc | Subsidary | 3/2/1996 | 6/16/1996 |
| Quad County Bancshares, Inc. | Subsidary | 7/22/1988 | 6/5/1990 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Nationsbank, National Association (Mid-West) | Buyer | 10,112,721 | Pooling of Interests | Discontinued | 6/17/1996 |