| Relationships | Role | Relationship Start | Relationship End |
| Ameribanc, Inc. | Parent | 4/2/1976 | 12/31/1987 |
| First American Bancshares, Inc. | Parent | 6/30/1964 | 4/1/1976 |
| First Bancorporation, Inc. | Parent | 12/31/1970 | 9/5/1972 |
| Missouri Bancorporation, Inc. | Parent | 12/31/1970 | 9/5/1972 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Plattsburg Branch | Buyer | Discontinued | 1/1/1988 |