# Relationship history for MSHA mine 1302269

Current hierarchy: **Andrew J Lounsbury; William  Lounsbury; Benjamin L Lounsbury → Lounsbury LSG, LLC → Lounsbury Sand & Gravel**

- 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:** Lounsbury LSG, LLC → Lounsbury Sand & Gravel; 2003-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Benjamin L  Lounsbury et al → Lounsbury Sand & Gravel; 2003-04-01 to 2024-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin L  Lounsbury et al → Lounsbury LSG, LLC; 2003-04-01 to 2024-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Andrew J  Lounsbury et al → Lounsbury LSG, LLC; 2003-04-01 to 2024-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Benjamin L Lounsbury et al → Lounsbury Sand & Gravel; 2025-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin L Lounsbury et al → Lounsbury LSG, LLC; 2025-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andrew J Lounsbury et al → Lounsbury LSG, LLC; 2025-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William  Lounsbury et al → Lounsbury LSG, LLC; 2025-01-01 to current/open; source msha-controller-operator-history