# Relationship history for MSHA mine 1103187

Current hierarchy: **Bart  Whitney; Bill  Mennie → The Mennie Group LLC Bureau Quarry → The Mennie Group LLC Bureau 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Indian Valley Timber & Stone → The Mennie Group LLC Bureau Quarry; 2007-12-20 to 2015-11-18; source msha-controller-operator-history
- **controller_controls_mine:** Dan C  Ellberg → The Mennie Group LLC Bureau Quarry; 2007-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan C  Ellberg → Indian Valley Timber & Stone; 2007-12-20 to 2015-11-18; source msha-controller-operator-history
- **operator_operates_mine:** The Mennie Group LLC Bureau Quarry → The Mennie Group LLC Bureau Quarry; 2015-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Mennie et al → The Mennie Group LLC Bureau Quarry; 2015-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Mennie et al → The Mennie Group LLC Bureau Quarry; 2015-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bart  Whitney et al → The Mennie Group LLC Bureau Quarry; 2015-11-19 to current/open; source msha-controller-operator-history