| Relationships | Role | Relationship Start | Relationship End |
| Interfirst Bank Dallas, National Association | Parent | 12/31/1979 | 12/31/1982 |
| Interfirst Corporation | Parent | 12/31/1977 | 12/30/1979 |
| Interfirst Bank Dallas, National Association | Parent | 1/2/1969 | 12/30/1977 |
| First Dallas Limited | Subsidary | 12/31/1980 | 8/31/1982 |
| First International (Pacific) Limited | Subsidary | 12/31/1980 | 8/31/1982 |