# Relationship history for MSHA mine 0101852

Current hierarchy: **Wilkinson W C → Wilkinson & Jenkins Construction Company Inc → Wilkinson And Jenkins No 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Wilkinson & Jenkins Construction Company Inc → Wilkinson And Jenkins No 1; 1978-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wilkinson W C → Wilkinson And Jenkins No 1; 1978-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wilkinson W C → Wilkinson & Jenkins Construction Company Inc; 1978-04-01 to current/open; source msha-controller-operator-history