# Relationship history for MSHA mine 1511529

Current hierarchy: **Stanley W Osborne → Laurel Ridge Coal Company Inc → No 6**

- 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 W  Potter et al → No 6; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James L  Griffith et al → No 6; 1970-01-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bentley Claude E → No 6; 1976-07-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C R D Coal Company Inc → No 6; 1978-09-01 to 1979-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Bentley Claude E → C R D Coal Company Inc; 1978-09-01 to 1979-08-14; source msha-controller-operator-history
- **operator_operates_mine:** D & A Coal Company Inc → No 6; 1979-08-15 to 1980-05-18; source msha-controller-operator-history
- **controller_controls_operator:** James L  Griffith et al → D & A Coal Company Inc; 1979-08-15 to 1980-05-18; source msha-controller-operator-history
- **operator_operates_mine:** R W & S Coal Company Inc → No 6; 1980-05-19 to 1980-08-19; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth  Rowe → No 6; 1980-05-19 to 1980-08-19; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Rowe → R W & S Coal Company Inc; 1980-05-19 to 1980-08-19; source msha-controller-operator-history
- **operator_operates_mine:** Horace Mining Company Inc → No 6; 1980-08-20 to 1983-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Jones Thomas → No 6; 1980-08-20 to 1983-07-18; source msha-controller-operator-history
- **controller_controls_operator:** Jones Thomas → Horace Mining Company Inc; 1980-08-20 to 1983-07-18; source msha-controller-operator-history
- **controller_controls_mine:** William R  Wachob → No 6; 1981-03-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sloan Curtis & David Belcher → No 6; 1981-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Potter Mining Company Inc → No 6; 1983-07-19 to 1987-03-10; source msha-controller-operator-history
- **controller_controls_operator:** James W  Potter et al → Potter Mining Company Inc; 1983-07-19 to 1987-03-10; source msha-controller-operator-history
- **controller_controls_mine:** Mann Franklin & Haskell Addington → No 6; 1985-11-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hall Vernon → No 6; 1987-02-23 to 1987-08-27; source msha-controller-operator-history
- **operator_operates_mine:** Hall-Cole Inc → No 6; 1987-03-11 to 1987-08-27; source msha-controller-operator-history
- **controller_controls_operator:** Hall Vernon → Hall-Cole Inc; 1987-03-11 to 1987-08-27; source msha-controller-operator-history
- **operator_operates_mine:** Potter Mining Company Inc → No 6; 1987-08-28 to 1987-11-02; source msha-controller-operator-history
- **controller_controls_operator:** James W  Potter et al → Potter Mining Company Inc; 1987-08-28 to 1987-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Wachob Coal Corp → No 6; 1987-11-03 to 1988-11-02; source msha-controller-operator-history
- **controller_controls_operator:** William R  Wachob → Wachob Coal Corp; 1987-11-03 to 1988-11-02; source msha-controller-operator-history
- **controller_controls_mine:** Stanley W Osborne → No 6; 1988-02-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Redbud Coals Inc → No 6; 1988-11-03 to 1992-01-08; source msha-controller-operator-history
- **controller_controls_mine:** Richard E  Salyer et al → No 6; 1988-11-03 to 1992-01-08; source msha-controller-operator-history
- **controller_controls_operator:** Richard E  Salyer et al → Redbud Coals Inc; 1988-11-03 to 1992-01-08; source msha-controller-operator-history
- **operator_operates_mine:** Fountain Blue Coal Company Inc → No 6; 1992-01-09 to 1992-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Mann Franklin & Haskell Addington → Fountain Blue Coal Company Inc; 1992-01-09 to 1992-03-01; source msha-controller-operator-history
- **operator_operates_mine:** Old South Mining Corp → No 6; 1992-03-02 to 1992-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Sloan Curtis & David Belcher → Old South Mining Corp; 1992-03-02 to 1992-08-10; source msha-controller-operator-history
- **operator_operates_mine:** Laurel Ridge Coal Company Inc → No 6; 1992-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanley W Osborne → Laurel Ridge Coal Company Inc; 1992-08-11 to current/open; source msha-controller-operator-history