| Relationships | Role | Relationship Start | Relationship End |
| Langdon Investments, Inc. | Parent | 6/30/1991 | 10/30/1991 |
| Melville Investments, Inc. | Parent | 6/30/1991 | 10/30/1991 |
| Normanstone Investments, Inc. | Parent | 6/1/1991 | 6/29/1991 |
| Whitehaven Investments, Inc. | Parent | 6/1/1991 | 6/29/1991 |