| Relationships | Role | Relationship Start | Relationship End |
| Northern Trust Corporation | Parent | 6/30/2007 | |
| Northern Trust Corporation | Parent | 2/28/1974 | 6/29/2007 |
| 1515 Ringling Partnership | Subsidary | 12/1/1981 | 2/28/1984 |
| Relationships | Role | Relationship Start | Relationship End |
| Northern Trust Corporation | Parent | 6/30/2007 | |
| Northern Trust Corporation | Parent | 2/28/1974 | 6/29/2007 |
| 1515 Ringling Partnership | Subsidary | 12/1/1981 | 2/28/1984 |