# Relationship history for MSHA mine 4400205

Current hierarchy: **C Wilson  McNeely → Old Virginia Brick Company Inc → Roanoke Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Old Virginia Brick Company Inc → Roanoke Pit; 1950-01-01 to 1986-04-02; source msha-controller-operator-history
- **controller_controls_mine:** H R  Garden → Roanoke Pit; 1950-01-01 to 1986-04-02; source msha-controller-operator-history
- **controller_controls_operator:** H R  Garden → Old Virginia Brick Company Inc; 1950-01-01 to 1986-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Old Virginia Brick Company Inc → Roanoke Pit; 1986-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** J Fletcher  Smoak → Roanoke Pit; 1986-04-03 to 2006-02-27; source msha-controller-operator-history
- **controller_controls_operator:** J Fletcher  Smoak → Old Virginia Brick Company Inc; 1986-04-03 to 2006-02-27; source msha-controller-operator-history
- **controller_controls_mine:** C Wilson  McNeely → Roanoke Pit; 2006-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** C Wilson  McNeely → Old Virginia Brick Company Inc; 2006-02-28 to current/open; source msha-controller-operator-history