# Relationship history for MSHA mine 2300105

Current hierarchy: **George T Oglesby III → Missouri Red Quarries Inc → Missouri Red Quarries 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:** Heyward Granite Company → Missouri Red Quarries Inc; 1950-01-01 to 1982-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Heyward Granite Company → Missouri Red Quarries Inc; 1950-01-01 to 1982-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Heyward Granite Company → Heyward Granite Company; 1950-01-01 to 1982-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Missouri Red Quarries Inc → Missouri Red Quarries Inc; 1982-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tom  Oglesby → Missouri Red Quarries Inc; 1982-10-22 to 2020-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Tom  Oglesby → Missouri Red Quarries Inc; 1982-10-22 to 2020-03-31; source msha-controller-operator-history
- **controller_controls_mine:** George T Oglesby III → Missouri Red Quarries Inc; 2020-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George T Oglesby III → Missouri Red Quarries Inc; 2020-04-01 to current/open; source msha-controller-operator-history