| Relationships | Role | Relationship Start | Relationship End |
| South Dakota Financial Bancorporation, Inc. | Parent | 12/16/1996 | 10/31/1997 |
| South Dakota Financial Bancorporation, Inc. | Parent | 7/12/1991 | 12/15/1996 |
| Tri County Investment Company | Parent | 12/31/1985 | 12/30/1988 |
| Tri County State Bank Holding Company, Inc. | Parent | 10/28/1983 | 12/30/1985 |
| Tri County State Bank Holding Company, Inc. | Parent | 4/1/1979 | 10/27/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Marquette Bank South Dakota, National Association | Buyer | 551,350 | Pooling of Interests | Discontinued | 11/1/1997 |