# Relationship history for MSHA mine 4401250

Current hierarchy: **Stanley John B → J R & R Coal Company Inc → 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

- **operator_operates_mine:** Bonnie Coal Company → No 2; 1950-01-01 to 1975-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Weaver Robert → No 2; 1950-01-01 to 1975-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Weaver Robert → Bonnie Coal Company; 1950-01-01 to 1975-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Westbury Coal Mining Partnership → No 2; 1975-04-01 to 1977-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Minco Corp & Westbury Development Corp → No 2; 1975-04-01 to 1979-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Minco Corp & Westbury Development Corp → Westbury Coal Mining Partnership; 1975-04-01 to 1977-07-18; source msha-controller-operator-history
- **operator_operates_mine:** Richlands Coal Mining Partnership → No 2; 1977-07-19 to 1977-09-29; source msha-controller-operator-history
- **controller_controls_mine:** White Earl → No 2; 1977-07-19 to 1977-09-29; source msha-controller-operator-history
- **controller_controls_operator:** White Earl → Richlands Coal Mining Partnership; 1977-07-19 to 1977-09-29; source msha-controller-operator-history
- **controller_controls_mine:** Rash Russell → No 2; 1977-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Middle Creek Coal Corp → No 2; 1977-09-30 to 1978-04-12; source msha-controller-operator-history
- **controller_controls_operator:** Rash Russell → Middle Creek Coal Corp; 1977-09-30 to 1978-04-12; source msha-controller-operator-history
- **operator_operates_mine:** J S & K Coal Corp → No 2; 1978-04-13 to 1978-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Jackson Ronald & George Kidd → No 2; 1978-04-13 to 1978-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Jackson Ronald & George Kidd → J S & K Coal Corp; 1978-04-13 to 1978-12-31; source msha-controller-operator-history
- **operator_operates_mine:** J S & K Coal Corp → No 2; 1979-01-01 to 1981-12-02; source msha-controller-operator-history
- **controller_controls_mine:** Bill R  Simmons et al → No 2; 1979-01-01 to 1981-12-02; source msha-controller-operator-history
- **controller_controls_operator:** Bill R  Simmons et al → J S & K Coal Corp; 1979-01-01 to 1981-12-02; source msha-controller-operator-history
- **operator_operates_mine:** H J & R Corp → No 2; 1981-12-03 to 1984-05-30; source msha-controller-operator-history
- **controller_controls_mine:** Johnston Clinton-James G West Et Al → No 2; 1981-12-03 to 1984-05-30; source msha-controller-operator-history
- **controller_controls_operator:** Johnston Clinton-James G West Et Al → H J & R Corp; 1981-12-03 to 1984-05-30; source msha-controller-operator-history
- **controller_controls_mine:** Stanley John B → No 2; 1982-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J R & R Coal Company Inc → No 2; 1984-05-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanley John B → J R & R Coal Company Inc; 1984-05-31 to current/open; source msha-controller-operator-history