| Relationships | Role | Relationship Start | Relationship End |
| Wells Fargo & Company | Parent | 12/31/1977 | 12/31/1989 |
| Wells Fargo & Company | Parent | 12/31/1974 | 12/30/1977 |
| Wells Fargo & Company | Parent | 5/9/1956 | 12/30/1974 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Wells Fargo Bank Iowa, National Association | Buyer | 6,606,799 | Discontinued | 1/1/1990 | |
| The Toy National Bank | Seller | 135,620 | Discontinued | 12/1/1987 | |
| Morningside Savings Bank | Seller | Discontinued | 11/1/1967 |