# Relationship history for MSHA mine 4003536

Current hierarchy: **Michael  Rector; John  Rector → BMJ Stone Company, LLC → Jake Copeland Quarries**

- 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:** John  Rector  et al → Jake Copeland Quarries; 2009-03-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** BMJ Stone Company, LLC → Jake Copeland Quarries; 2020-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Rector  et al → BMJ Stone Company, LLC; 2020-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Rector  et al → BMJ Stone Company, LLC; 2020-04-08 to current/open; source msha-controller-operator-history