# Relationship history for MSHA mine 4405229

Current hierarchy: **Lee J H → J H Lee & Sons Inc → Pit #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:** Al Clary & Son Construction Company Inc → Pit #1; 1979-01-01 to 1981-05-13; source msha-controller-operator-history
- **controller_controls_mine:** Clary Tommy G → Pit #1; 1979-01-01 to 1981-05-13; source msha-controller-operator-history
- **controller_controls_operator:** Clary Tommy G → Al Clary & Son Construction Company Inc; 1979-01-01 to 1981-05-13; source msha-controller-operator-history
- **operator_operates_mine:** J H Lee & Sons Inc → Pit #1; 1981-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lee J H → Pit #1; 1981-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lee J H → J H Lee & Sons Inc; 1981-05-14 to current/open; source msha-controller-operator-history