# Relationship history for MSHA mine 2302424

Current hierarchy: **Ken W  Ideker; Paul  Ideker → Greenfield Construction LLC → McAfee 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

- **operator_operates_mine:** Greenfield Construction LLC → McAfee Quarry; 2011-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ken W  Ideker et al → McAfee Quarry; 2011-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ken W  Ideker et al → Greenfield Construction LLC; 2011-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Ideker et al → Greenfield Construction LLC; 2011-10-05 to current/open; source msha-controller-operator-history