# Relationship history for MSHA mine 1512587

Current hierarchy: **Larry  Yonts; Ray  Slone → C H & S Mining Company Inc → #2**

- 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

- **controller_controls_mine:** Benjamin  Hampton → #2; 1977-11-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C H & S Mining Company Inc → #2; 1980-12-01 to 1986-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin  Hampton → C H & S Mining Company Inc; 1980-12-01 to 1986-09-04; source msha-controller-operator-history
- **operator_operates_mine:** C H & S Mining Company Inc → #2; 1986-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Yonts et al → #2; 1986-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Yonts et al → C H & S Mining Company Inc; 1986-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Slone et al → C H & S Mining Company Inc; 1986-09-05 to current/open; source msha-controller-operator-history