# Relationship history for MSHA mine 3300163

Current hierarchy: **Mc Kinney William E → Taylor Stone Company Inc → Taylor Quarry**

- 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:** Taylor Stone Company Inc → Taylor Quarry; 1950-01-01 to 1979-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Mc Kinney William E → Taylor Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Kinney William E → Taylor Stone Company Inc; 1950-01-01 to 1979-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Eastone Of Ohio Inc → Taylor Quarry; 1979-09-01 to 1981-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Laliberte Lucien → Taylor Quarry; 1979-09-01 to 1981-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Laliberte Lucien → Eastone Of Ohio Inc; 1979-09-01 to 1981-01-14; source msha-controller-operator-history
- **operator_operates_mine:** Eastone Of Ohio Inc → Taylor Quarry; 1981-01-15 to 1983-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Sank Jesse → Taylor Quarry; 1981-01-15 to 1983-07-13; source msha-controller-operator-history
- **controller_controls_operator:** Sank Jesse → Eastone Of Ohio Inc; 1981-01-15 to 1983-07-13; source msha-controller-operator-history
- **operator_operates_mine:** Taylor Stone Company Inc → Taylor Quarry; 1983-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Kinney William E → Taylor Stone Company Inc; 1983-07-14 to current/open; source msha-controller-operator-history