# Relationship history for MSHA mine 1509982

Current hierarchy: **Shelton Roy F → Valley River Mining Inc → Mine No 2**

- 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:** Adams David Lee & Judy Adams → Mine No 2; 1974-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baker Vaughn → Mine No 2; 1976-08-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A & B Coal Sales Inc → Mine No 2; 1976-09-22 to 1977-05-11; source msha-controller-operator-history
- **controller_controls_operator:** Baker Vaughn → A & B Coal Sales Inc; 1976-09-22 to 1977-05-11; source msha-controller-operator-history
- **operator_operates_mine:** David Lee Adams Coal Company Inc → Mine No 2; 1977-05-12 to 1980-11-20; source msha-controller-operator-history
- **controller_controls_operator:** Adams David Lee & Judy Adams → David Lee Adams Coal Company Inc; 1977-05-12 to 1980-11-20; source msha-controller-operator-history
- **controller_controls_mine:** George  Johnson et al → Mine No 2; 1979-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** David Lee Adams Coal Company Inc → Mine No 2; 1980-11-21 to 1982-03-03; source msha-controller-operator-history
- **controller_controls_mine:** Sexton Columbus → Mine No 2; 1980-11-21 to 1982-03-03; source msha-controller-operator-history
- **controller_controls_operator:** Sexton Columbus → David Lee Adams Coal Company Inc; 1980-11-21 to 1982-03-03; source msha-controller-operator-history
- **operator_operates_mine:** Cavalier Contracting Company Inc → Mine No 2; 1982-03-04 to 1982-10-12; source msha-controller-operator-history
- **controller_controls_mine:** Haynes Ray → Mine No 2; 1982-03-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Haynes Ray → Cavalier Contracting Company Inc; 1982-03-04 to 1982-10-12; source msha-controller-operator-history
- **operator_operates_mine:** David Lee Adams Coal Company Inc → Mine No 2; 1982-10-13 to 1983-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Kincer Bobby → Mine No 2; 1982-10-13 to 1985-11-11; source msha-controller-operator-history
- **controller_controls_operator:** Kincer Bobby → David Lee Adams Coal Company Inc; 1982-10-13 to 1983-04-07; source msha-controller-operator-history
- **operator_operates_mine:** Four Suns Coal Company Inc → Mine No 2; 1983-04-08 to 1984-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Williams Freeman → Mine No 2; 1983-04-08 to 1984-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Williams Freeman → Four Suns Coal Company Inc; 1983-04-08 to 1984-01-09; source msha-controller-operator-history
- **operator_operates_mine:** David Lee Adams Coal Company Inc → Mine No 2; 1984-01-10 to 1985-11-11; source msha-controller-operator-history
- **controller_controls_operator:** Kincer Bobby → David Lee Adams Coal Company Inc; 1984-01-10 to 1985-11-11; source msha-controller-operator-history
- **operator_operates_mine:** Aquila Corp → Mine No 2; 1985-11-12 to 1988-08-25; source msha-controller-operator-history
- **controller_controls_mine:** Winters Ken → Mine No 2; 1985-11-12 to 1988-08-25; source msha-controller-operator-history
- **controller_controls_operator:** Winters Ken → Aquila Corp; 1985-11-12 to 1988-08-25; source msha-controller-operator-history
- **controller_controls_mine:** Lawson Truman Dale → Mine No 2; 1987-10-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kinney Branch Coal Company Inc → Mine No 2; 1988-08-26 to 1989-11-05; source msha-controller-operator-history
- **controller_controls_operator:** George  Johnson et al → Kinney Branch Coal Company Inc; 1988-08-26 to 1989-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Garnie E  Johnson et al → Kinney Branch Coal Company Inc; 1988-08-26 to 1989-11-05; source msha-controller-operator-history
- **operator_operates_mine:** Tdl Coal Company Inc → Mine No 2; 1989-11-06 to 1992-05-27; source msha-controller-operator-history
- **controller_controls_operator:** Lawson Truman Dale → Tdl Coal Company Inc; 1989-11-06 to 1992-05-27; source msha-controller-operator-history
- **operator_operates_mine:** Valley River Mining Inc → Mine No 2; 1992-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shelton Roy F → Mine No 2; 1992-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shelton Roy F → Valley River Mining Inc; 1992-05-28 to current/open; source msha-controller-operator-history