# Relationship history for MSHA mine 1513014

Current hierarchy: **Jessica R  Lester → Lester Coal Company Inc → No 6 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

- **operator_operates_mine:** Southern Pike Mining Inc → No 6 Mine; 1981-07-01 to 1985-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Jones John L → No 6 Mine; 1981-07-01 to 1985-08-08; source msha-controller-operator-history
- **controller_controls_operator:** Jones John L → Southern Pike Mining Inc; 1981-07-01 to 1985-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Jessica R  Lester et al → No 6 Mine; 1982-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baisden David L Et Al → No 6 Mine; 1985-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eastwood Mining Company Inc → No 6 Mine; 1985-08-09 to 1987-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Tommy Joe  Owens → No 6 Mine; 1985-08-09 to 1987-05-18; source msha-controller-operator-history
- **controller_controls_operator:** Tommy Joe  Owens → Eastwood Mining Company Inc; 1985-08-09 to 1987-05-18; source msha-controller-operator-history
- **operator_operates_mine:** Baisden Coal Company Inc → No 6 Mine; 1987-05-19 to 1988-12-07; source msha-controller-operator-history
- **controller_controls_operator:** Baisden David L Et Al → Baisden Coal Company Inc; 1987-05-19 to 1988-12-07; source msha-controller-operator-history
- **operator_operates_mine:** Lester Coal Company Inc → No 6 Mine; 1988-12-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jessica R  Lester et al → Lester Coal Company Inc; 1988-12-08 to current/open; source msha-controller-operator-history