# Relationship history for MSHA mine 3610167

Current hierarchy: **Stacey  McClain → S. McClain Stone Company Inc. → McClain 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

- **controller_controls_mine:** Stacey  McClain → McClain Quarry; 2005-08-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** McClain Quarries → McClain Quarry; 2015-09-30 to 2019-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Matthew R  McClain → McClain Quarry; 2015-09-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew R  McClain → McClain Quarries; 2015-09-30 to 2019-04-16; source msha-controller-operator-history
- **operator_operates_mine:** S. McClain Stone Company Inc. → McClain Quarry; 2019-04-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stacey  McClain → S. McClain Stone Company Inc.; 2019-04-17 to current/open; source msha-controller-operator-history