# Relationship history for MSHA mine 1512625

Current hierarchy: **James L  Griffith → D & A Coal Company Inc → No 202 Mine (D)**

- 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:** James L  Griffith et al → No 202 Mine (D); 1970-01-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas B  Ratliff → No 202 Mine (D); 1978-09-01 to 2019-06-19; source msha-controller-operator-history
- **operator_operates_mine:** 3 M Development & Coal Corp → No 202 Mine (D); 1980-11-01 to 1982-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Lucas James H → No 202 Mine (D); 1980-11-01 to 1992-08-11; source msha-controller-operator-history
- **controller_controls_operator:** Lucas James H → 3 M Development & Coal Corp; 1980-11-01 to 1982-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Larry F  Bentley et al → No 202 Mine (D); 1981-08-26 to 1982-10-28; source msha-controller-operator-history
- **operator_operates_mine:** B & C Coal Company → No 202 Mine (D); 1982-04-01 to 1982-04-05; source msha-controller-operator-history
- **controller_controls_operator:** Larry F  Bentley et al → B & C Coal Company; 1982-04-01 to 1982-04-05; source msha-controller-operator-history
- **operator_operates_mine:** Landmark Mining Company Inc → No 202 Mine (D); 1982-04-06 to 1983-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Thomas B  Ratliff → Landmark Mining Company Inc; 1982-04-06 to 1983-08-14; source msha-controller-operator-history
- **operator_operates_mine:** D & A Coal Company Inc → No 202 Mine (D); 1983-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Griffith et al → D & A Coal Company Inc; 1983-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Ratliff → No 202 Mine (D); 2019-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Ratliff → Landmark Mining Company Inc; 2019-06-20 to 1983-08-14; source msha-controller-operator-history