| Relationships | Role | Relationship Start | Relationship End |
| 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 | 1/20/1965 | 12/30/1970 |
| Relationships | Role | Relationship Start | Relationship End |
| 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 | 1/20/1965 | 12/30/1970 |