# Relationship history for MSHA mine 4404625

Current hierarchy: **Ramey C A → B D & R Mining Inc → Mine No 1**

- 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:** Meadows Fred → Mine No 1; 1975-07-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** May Branch Coal Company Inc → Mine No 1; 1977-02-01 to 1977-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Meadows Fred → May Branch Coal Company Inc; 1977-02-01 to 1977-08-29; source msha-controller-operator-history
- **operator_operates_mine:** J & P Coal Company Inc → Mine No 1; 1977-08-30 to 1981-03-24; source msha-controller-operator-history
- **controller_controls_mine:** Prater Tolbert → Mine No 1; 1977-08-30 to 1981-03-24; source msha-controller-operator-history
- **controller_controls_operator:** Prater Tolbert → J & P Coal Company Inc; 1977-08-30 to 1981-03-24; source msha-controller-operator-history
- **operator_operates_mine:** Mack Coal Corp → Mine No 1; 1981-03-25 to 1984-06-21; source msha-controller-operator-history
- **controller_controls_mine:** Prater Betty → Mine No 1; 1981-03-25 to 1988-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Prater Betty → Mack Coal Corp; 1981-03-25 to 1984-06-21; source msha-controller-operator-history
- **operator_operates_mine:** Mc Clair Mining Corp → Mine No 1; 1984-06-22 to 1985-04-15; source msha-controller-operator-history
- **controller_controls_mine:** Mc Clanahan Donald Keith → Mine No 1; 1984-06-22 to 1990-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clanahan Donald Keith → Mc Clair Mining Corp; 1984-06-22 to 1985-04-15; source msha-controller-operator-history
- **operator_operates_mine:** B D & R Mining Inc → Mine No 1; 1985-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ramey C A → Mine No 1; 1985-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ramey C A → B D & R Mining Inc; 1985-04-16 to current/open; source msha-controller-operator-history