# Relationship history for MSHA mine 4703964

Current hierarchy: **B Jay  Huse; Leah  Huse → JH Excavating, LLC → McGill 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:** JH Excavating, LLC → McGill Pit; 2024-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** B Jay  Huse et al → McGill Pit; 2024-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** B Jay  Huse et al → JH Excavating, LLC; 2024-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leah  Huse et al → JH Excavating, LLC; 2024-07-01 to current/open; source msha-controller-operator-history