# Relationship history for MSHA mine 4407391

Current hierarchy: **Jerry W  Wharton → J W Construction Inc → Turkey Branch Strip #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

- **controller_controls_mine:** Jerry W  Wharton → Turkey Branch Strip #1; 2018-03-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J W Construction Inc → Turkey Branch Strip #1; 2018-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry W  Wharton → J W Construction Inc; 2018-08-24 to current/open; source msha-controller-operator-history