# Relationship history for MSHA mine 4602119

Current hierarchy: **D L  Morgan Jr → Inwood Quarry Inc → Inwood Quarry Inc**

- 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:** Inwood Quarry Inc → Inwood Quarry Inc; 1950-01-01 to 1998-06-29; source msha-controller-operator-history
- **controller_controls_mine:** Mary  Combs → Inwood Quarry Inc; 1950-01-01 to 1998-06-29; source msha-controller-operator-history
- **controller_controls_operator:** Mary  Combs → Inwood Quarry Inc; 1950-01-01 to 1998-06-29; source msha-controller-operator-history
- **operator_operates_mine:** Inwood Quarry Inc → Inwood Quarry Inc; 1998-06-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** D L  Morgan Jr → Inwood Quarry Inc; 1998-06-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** D L  Morgan Jr → Inwood Quarry Inc; 1998-06-30 to current/open; source msha-controller-operator-history