# Relationship history for MSHA mine 2902303

Current hierarchy: **Thomas J  George; Nancy G  Holt → Edgewood Aggregates LLC → Edgewood Aggregates LLC**

- 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:** Edgewood Aggregates LLC → Edgewood Aggregates LLC; 2006-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas J  George  et al → Edgewood Aggregates LLC; 2006-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas J  George  et al → Edgewood Aggregates LLC; 2006-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nancy G  Holt  et al → Edgewood Aggregates LLC; 2006-02-03 to current/open; source msha-controller-operator-history