| Relationships | Role | Relationship Start | Relationship End |
| Thomas County Bankshares, Inc. | Parent | 12/31/1984 | 3/31/1992 |
| Thomas County Bankshares, Inc. | Parent | 12/31/1980 | 12/30/1984 |
| Thomas County Bankshares, Inc. | Parent | 1/12/1973 | 12/30/1980 |
| Hi-Plains Insurance Agency, Inc. | Parent | 12/31/1970 | 1/11/1973 |
| Thomas County National Bank Building Corporation,I | Subsidary | 12/31/1970 | 12/31/1974 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Sunflower Bank, National Association | Buyer | 1,858,499 | Discontinued | 4/1/1992 | |
| Brewster State Bank | Seller | Failure | 12/8/1936 |