# Relationship history for MSHA mine 4500058

Current hierarchy: **Jerry  Hammer; Steve  Butenschoen → Clauson Quarry LLC → Clauson 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Clauson Quarry LLC → Clauson Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Diane  Clauson  et al → Clauson Quarry; 2002-03-06 to 2009-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Diane  Clauson  et al → Clauson Quarry LLC; 2002-03-06 to 2009-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Butenschoen et al → Clauson Quarry; 2009-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Butenschoen et al → Clauson Quarry LLC; 2009-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Hammer et al → Clauson Quarry LLC; 2009-06-16 to current/open; source msha-controller-operator-history