| Relationships | Role | Relationship Start | Relationship End |
| Nb Holdings Corporation | Parent | 1/7/1997 | 6/13/1997 |
| Boatmen's Bancshares, Inc. | Parent | 9/30/1987 | 1/6/1997 |
| Boatmen's Bancshares, Inc. Of Illinois | Parent | 3/6/1984 | 9/29/1987 |
| Mid-Central Bancshares Corporation | Parent | 7/31/1982 | 3/5/1984 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Of America, National Association | Buyer | 322,913,000 | Pooling of Interests | Discontinued | 6/14/1997 |
| Ashmore State Bank | Seller | 7,022 | Discontinued | 1/20/1986 | |
| Rardin State Bank | Seller | Failure | 9/1/1939 |