# Relationship history for MSHA mine 3500254

Current hierarchy: **Claussen Jack → C P S Mining Company → Mandrones Mine & Mill**

- 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:** Madrone'S Mining Company Inc → Mandrones Mine & Mill; 1950-01-01 to 1972-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Madrone'S Mining Company Inc → Mandrones Mine & Mill; 1950-01-01 to 1972-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Madrone'S Mining Company Inc → Madrone'S Mining Company Inc; 1950-01-01 to 1972-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Madrone'S Mining Company Inc → Mandrones Mine & Mill; 1973-01-01 to 1981-09-28; source msha-controller-operator-history
- **controller_controls_mine:** Aday Alvin → Mandrones Mine & Mill; 1973-01-01 to 1981-09-28; source msha-controller-operator-history
- **controller_controls_operator:** Aday Alvin → Madrone'S Mining Company Inc; 1973-01-01 to 1981-09-28; source msha-controller-operator-history
- **operator_operates_mine:** C P S Mining Company → Mandrones Mine & Mill; 1981-09-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Claussen Jack → Mandrones Mine & Mill; 1981-09-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Claussen Jack → C P S Mining Company; 1981-09-29 to current/open; source msha-controller-operator-history