| Relationships | Role | Relationship Start | Relationship End |
| Southwest Employees Incentive Plan | Parent | 12/31/1970 | 12/31/1971 |
| Grayson County State Bank | Parent | 7/1/1966 | 12/30/1970 |
| First National Bank In Cisco | Parent | 7/1/1966 | 12/30/1970 |
| Southwest Employees Incentive Plan | Parent | 5/5/1954 | 12/30/1970 |