| Relationships | Role | Relationship Start | Relationship End |
| Banc One Ohio Corporation | Parent | 1/1/1988 | 5/16/1997 |
| Bank One Corporation | Parent | 3/1/1982 | 12/31/1987 |
| Banc One, Youngstown Financial Services Corporation | Subsidary | 12/31/1983 | 5/16/1997 |
| Commercial Shearing Inc. | Subsidary | 4/1/1983 | 12/31/1984 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank One, National Association | Buyer | 69,853,000 | Pooling of Interests | Discontinued | 5/17/1997 |
| The Union Savings & Trust Co. | Seller | 290,981 | Discontinued | 5/1/1984 | |
| The First National Bank Of East Liverpool | Seller | 79,656 | Discontinued | 4/1/1984 | |
| Heritage Bank | Seller | 269,819 | Discontinued | 4/1/1983 | |
| The First National Bank Of Girard | Seller | 20,859 | Discontinued | 4/1/1973 | |
| The North Bloomfield Banking Company | Seller | Discontinued | 6/28/1972 |