# Relationship history for MSHA mine 2200850

Current hierarchy: **Josh  Selman; Walker Scott Cline III; Walker Scott Cline Jr → Mill Creek Sand and Gravel, LLC → Mill Creek Sand and 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:** Mill Creek Sand and Gravel, LLC → Mill Creek Sand and Gravel LLC; 2023-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Josh  Selman et al → Mill Creek Sand and Gravel LLC; 2023-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Josh  Selman et al → Mill Creek Sand and Gravel, LLC; 2023-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Walker Scott Cline Jr et al → Mill Creek Sand and Gravel, LLC; 2023-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Walker Scott Cline III et al → Mill Creek Sand and Gravel, LLC; 2023-10-11 to current/open; source msha-controller-operator-history