# Relationship history for MSHA mine 0502547

Current hierarchy: **Bonine Earl & Terri Wyley → Bonine Construction → Lambert Pit**

- 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:** Kinne Sand & Gravel → Lambert Pit; 1950-01-01 to 1984-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Kinne Paul → Lambert Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kinne Paul → Kinne Sand & Gravel; 1950-01-01 to 1984-05-29; source msha-controller-operator-history
- **operator_operates_mine:** Bonine Construction → Lambert Pit; 1984-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bonine Earl & Terri Wyley → Lambert Pit; 1984-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bonine Earl & Terri Wyley → Bonine Construction; 1984-05-30 to current/open; source msha-controller-operator-history