# Relationship history for MSHA mine 2301687

Current hierarchy: **Jones Harry → Amearth Corp → Bronaugh 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:** Midwestern Mining & Reclamation Inc → Bronaugh Mine; 1977-11-01 to 1984-07-04; source msha-controller-operator-history
- **controller_controls_mine:** Palmer Ira W → Bronaugh Mine; 1977-11-01 to 1984-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Palmer Ira W → Midwestern Mining & Reclamation Inc; 1977-11-01 to 1984-07-04; source msha-controller-operator-history
- **operator_operates_mine:** Central West Coal Corp → Bronaugh Mine; 1984-07-05 to 1986-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Collins Stamper → Bronaugh Mine; 1984-07-05 to 1986-05-05; source msha-controller-operator-history
- **controller_controls_operator:** Collins Stamper → Central West Coal Corp; 1984-07-05 to 1986-05-05; source msha-controller-operator-history
- **operator_operates_mine:** Caylor Construction Company Inc → Bronaugh Mine; 1986-05-06 to 1987-07-08; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Caylor → Bronaugh Mine; 1986-05-06 to 1995-09-10; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Caylor → Caylor Construction Company Inc; 1986-05-06 to 1987-07-08; source msha-controller-operator-history
- **operator_operates_mine:** Amearth Corp → Bronaugh Mine; 1987-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jones Harry → Bronaugh Mine; 1987-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jones Harry → Amearth Corp; 1987-07-09 to current/open; source msha-controller-operator-history