# Relationship history for MSHA mine 0600805

Current hierarchy: **Eugene J  McClure → McClure Construction → McClure Sand & Gravel**

- 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:** McClure Construction → McClure Sand & Gravel; 2017-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eugene J  McClure → McClure Sand & Gravel; 2017-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eugene J  McClure → McClure Construction; 2017-06-08 to current/open; source msha-controller-operator-history