| Relationships | Role | Relationship Start | Relationship End |
| Columbian Financial Corporation | Parent | 7/31/1988 | 12/31/1990 |
| Topeka Bank Shares, Inc. | Parent | 12/31/1983 | 7/30/1988 |
| Topeka Bank Shares, Inc. | Parent | 3/28/1975 | 12/30/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| The Columbian Bank And Trust Company | Buyer | 735,071 | Discontinued | 1/1/1991 |