| Relationships | Role | Relationship Start | Relationship End |
| Mbank Longview, National Association | Parent | 12/31/1976 | 7/1/1986 |
| Kilgore First Bancorp, Inc. | Parent | 1/1/1985 | 7/1/1986 |
| Southwest Bancshares, Inc. | Parent | 12/10/1970 | 12/30/1976 |
| Relationships | Role | Relationship Start | Relationship End |
| Mbank Longview, National Association | Parent | 12/31/1976 | 7/1/1986 |
| Kilgore First Bancorp, Inc. | Parent | 1/1/1985 | 7/1/1986 |
| Southwest Bancshares, Inc. | Parent | 12/10/1970 | 12/30/1976 |