# Relationship history for MSHA mine 3610154

Current hierarchy: **Mary L McClintock → McClintock Quarries LLC → McClintock Quarries - 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Jack L. McClintock → McClintock Quarries - Pit 1; 2015-08-26 to 2022-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Jack Lamar  McClintock → McClintock Quarries - Pit 1; 2015-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack Lamar  McClintock → Jack L. McClintock; 2015-08-26 to 2022-04-11; source msha-controller-operator-history
- **operator_operates_mine:** McClintock Quarries LLC → McClintock Quarries - Pit 1; 2022-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mary L McClintock → McClintock Quarries - Pit 1; 2022-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mary L McClintock → McClintock Quarries LLC; 2022-04-12 to current/open; source msha-controller-operator-history