# Relationship history for MSHA mine 0405536

Current hierarchy: **Eric  Werner; Pat  Broyles → CHANDLER AGGREGATES → CHANDLER AGGREGATES - GILMAN SPRINGS**

- 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:** Jim  Broyles et al → CHANDLER AGGREGATES - GILMAN SPRINGS; 1995-01-07 to 2017-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Kennedy Hills Materials → CHANDLER AGGREGATES - GILMAN SPRINGS; 2002-09-19 to 2017-03-09; source msha-controller-operator-history
- **controller_controls_mine:** Jacqueline A  Smith et al → CHANDLER AGGREGATES - GILMAN SPRINGS; 2002-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacqueline A  Smith et al → Kennedy Hills Materials; 2002-09-19 to 2017-03-09; source msha-controller-operator-history
- **controller_controls_operator:** Clarence E  Smith et al → Kennedy Hills Materials; 2002-09-19 to 2017-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Chandler Aggregates → CHANDLER AGGREGATES - GILMAN SPRINGS; 2017-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eric  Werner et al → CHANDLER AGGREGATES - GILMAN SPRINGS; 2017-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric  Werner et al → Chandler Aggregates; 2017-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pat  Broyles et al → Chandler Aggregates; 2017-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Broyles et al → Chandler Aggregates; 2017-03-10 to 2017-03-09; source msha-controller-operator-history