| Relationships | Role | Relationship Start | Relationship End |
| Banc One Illinois Corporation | Parent | 10/1/1992 | 2/14/1997 |
| Illinois Banc One Corporation | Parent | 12/31/1980 | 9/30/1992 |
| Illinois Banc One Corporation | Parent | 10/15/1973 | 12/30/1980 |
| Boc Realty, Illinois, Inc. | Subsidary | 8/29/1995 | 2/14/1997 |
| Illinois Banc One Financial Advisors, Inc. | Subsidary | 4/1/1993 | 10/15/1993 |
| Illinois Banc One Investment Advisors | Subsidary | 4/1/1993 | 4/1/1993 |
| First Illinois Mortgage Corporation | Subsidary | 1/30/1989 | 3/31/1992 |
| First Illinois Title Company | Subsidary | 11/12/1986 | 3/2/1992 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank One, Illinois, National Association | Buyer | 4,732,793 | Pooling of Interests | Discontinued | 2/15/1997 |
| Bank One, Elgin | Seller | 93,320 | Discontinued | 4/1/1993 | |
| Bank One, Chicago | Seller | 61,190 | Discontinued | 4/1/1993 | |
| Bank One, Lagrange | Seller | 630,077 | Discontinued | 4/1/1993 | |
| Bank One, Wilmette | Seller | 346,714 | Discontinued | 4/1/1993 |