# Relationship history for MSHA mine 4405918

Current hierarchy: **Meadows Dorothy & Tracie → Pioneer Mining Company → Red Ash Mine No 1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Hopkins Willard L → Red Ash Mine No 1; 1982-01-07 to 1984-03-27; source msha-controller-operator-history
- **operator_operates_mine:** G & H Coal Company → Red Ash Mine No 1; 1982-07-01 to 1983-01-23; source msha-controller-operator-history
- **controller_controls_mine:** Harrison Harry B → Red Ash Mine No 1; 1982-07-01 to 1983-01-23; source msha-controller-operator-history
- **controller_controls_operator:** Harrison Harry B → G & H Coal Company; 1982-07-01 to 1983-01-23; source msha-controller-operator-history
- **operator_operates_mine:** Ann Marie Mining Inc → Red Ash Mine No 1; 1983-01-24 to 1984-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Hopkins Willard L → Ann Marie Mining Inc; 1983-01-24 to 1984-03-27; source msha-controller-operator-history
- **operator_operates_mine:** Eastern Mining Contractors Inc → Red Ash Mine No 1; 1984-03-28 to 1986-03-02; source msha-controller-operator-history
- **controller_controls_mine:** Thyssen Schachtbau Gmbh → Red Ash Mine No 1; 1984-03-28 to 1986-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Thyssen Schachtbau Gmbh → Eastern Mining Contractors Inc; 1984-03-28 to 1986-03-02; source msha-controller-operator-history
- **operator_operates_mine:** J S & L Coal Company → Red Ash Mine No 1; 1986-03-03 to 1987-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Mullins Swanson & Larry Et Al → Red Ash Mine No 1; 1986-03-03 to 1987-03-03; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Swanson & Larry Et Al → J S & L Coal Company; 1986-03-03 to 1987-03-03; source msha-controller-operator-history
- **operator_operates_mine:** Pioneer Mining Company → Red Ash Mine No 1; 1987-03-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Meadows Dorothy & Tracie → Red Ash Mine No 1; 1987-03-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meadows Dorothy & Tracie → Pioneer Mining Company; 1987-03-04 to current/open; source msha-controller-operator-history