# Relationship history for MSHA mine 4407149

Current hierarchy: **Charles S  Luck IV → Luck Stone Corp → Massaponax**

- 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:** Charles S  Luck IV  et al → Massaponax; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Luck Stone Corp → Massaponax; 2005-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles S  Luck IV  et al → Luck Stone Corp; 2005-08-18 to current/open; source msha-controller-operator-history