# Relationship history for MSHA mine 0302084

Current hierarchy: **Tony Ray Thacker → Leatherhead Quartz Mines → Maldon Mine**

- 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

- **controller_controls_mine:** Tony Ray Thacker → Maldon Mine; 2000-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tommy Wingfield → Maldon Mine; 2023-05-08 to 2023-11-02; source msha-controller-operator-history
- **controller_controls_mine:** Tommy B  Wingfield → Maldon Mine; 2023-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tommy B  Wingfield → Tommy Wingfield; 2023-05-08 to 2023-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Leatherhead Quartz Mines → Maldon Mine; 2023-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tony Ray Thacker → Leatherhead Quartz Mines; 2023-11-03 to current/open; source msha-controller-operator-history