# Relationship history for MSHA mine 1513186

Current hierarchy: **Eshtehardi Mark → J A R Mining Company Inc → Beaver Dam 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

- **controller_controls_mine:** Charles  Hoke et al → Beaver Dam Mine; 1974-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hoke Company Inc → Beaver Dam Mine; 1981-10-01 to 1984-12-09; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Hoke et al → Hoke Company Inc; 1981-10-01 to 1984-12-09; source msha-controller-operator-history
- **controller_controls_operator:** Anne  Hoke et al → Hoke Company Inc; 1981-10-01 to 1984-12-09; source msha-controller-operator-history
- **operator_operates_mine:** J A R Mining Company Inc → Beaver Dam Mine; 1984-12-10 to 1985-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Daugherty Jim → Beaver Dam Mine; 1984-12-10 to 1985-05-05; source msha-controller-operator-history
- **controller_controls_operator:** Daugherty Jim → J A R Mining Company Inc; 1984-12-10 to 1985-05-05; source msha-controller-operator-history
- **operator_operates_mine:** J A R Mining Company Inc → Beaver Dam Mine; 1985-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eshtehardi Mark → Beaver Dam Mine; 1985-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eshtehardi Mark → J A R Mining Company Inc; 1985-05-06 to current/open; source msha-controller-operator-history