# Relationship history for MSHA mine 2200804

Current hierarchy: **Leonard  Bossier; Blane  Bossier; Janette  Bossier → Magnolia Sand & Gravel, LLC → Magnolia Sand & Gravel, LLC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Associated Sand & Gravel → Magnolia Sand & Gravel, LLC; 2010-09-01 to 2022-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Bobby  Bryant → Magnolia Sand & Gravel, LLC; 2010-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Bryant → Associated Sand & Gravel; 2010-09-01 to 2022-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Magnolia Sand & Gravel, LLC → Magnolia Sand & Gravel, LLC; 2022-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blane  Bossier et al → Magnolia Sand & Gravel, LLC; 2022-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blane  Bossier et al → Magnolia Sand & Gravel, LLC; 2022-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janette  Bossier et al → Magnolia Sand & Gravel, LLC; 2022-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leonard  Bossier et al → Magnolia Sand & Gravel, LLC; 2022-02-01 to current/open; source msha-controller-operator-history