# Relationship history for MSHA mine 1519487

Current hierarchy: **Josh M  Young; Charles M  Young → Young Mining, LLC → Mine 1**

- 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:** Young Mining, LLC → Mine 1; 2010-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles M  Young et al → Mine 1; 2010-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles M  Young et al → Young Mining, LLC; 2010-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Josh M  Young et al → Young Mining, LLC; 2010-05-26 to current/open; source msha-controller-operator-history