| Relationships | Role | Relationship Start | Relationship End |
| Norwest Bank Helena, National Association | Parent | 6/1/1980 | 12/2/1991 |
| First National Bank & Trust Company Of Helena | Parent | 8/15/1980 | 12/31/1989 |
| Relationships | Role | Relationship Start | Relationship End |
| Norwest Bank Helena, National Association | Parent | 6/1/1980 | 12/2/1991 |
| First National Bank & Trust Company Of Helena | Parent | 8/15/1980 | 12/31/1989 |