# Relationship history for MSHA mine 3609473

Current hierarchy: **Jerry L  Johnson → Johnson Quarries Inc → P2 Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Jerry L  Johnson → P2 Quarry; 1997-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Johnson Quarries, Inc → P2 Quarry; 2006-10-05 to 2013-07-24; source msha-controller-operator-history
- **controller_controls_operator:** Jerry L  Johnson → Johnson Quarries, Inc; 2006-10-05 to 2013-07-24; source msha-controller-operator-history
- **controller_controls_mine:** Jaime S  Marin Sr → P2 Quarry; 2013-06-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jaime Marin → P2 Quarry; 2013-07-25 to 2015-01-27; source msha-controller-operator-history
- **controller_controls_operator:** Jaime S  Marin Sr → Jaime Marin; 2013-07-25 to 2015-01-27; source msha-controller-operator-history
- **operator_operates_mine:** Johnson Quarries Inc → P2 Quarry; 2015-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry L  Johnson → Johnson Quarries Inc; 2015-01-28 to current/open; source msha-controller-operator-history