# Relationship history for MSHA mine 1800586

Current hierarchy: **Brian N  Hannrahan → Jones Quarry LLC → Jones Quarry LLC**

- 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:** Jones Quarry → Jones Quarry LLC; 1950-01-01 to 1981-11-15; source msha-controller-operator-history
- **controller_controls_mine:** J Edward  Jones → Jones Quarry LLC; 1950-01-01 to 1981-11-15; source msha-controller-operator-history
- **controller_controls_operator:** J Edward  Jones → Jones Quarry; 1950-01-01 to 1981-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Jones Quarry → Jones Quarry LLC; 1981-11-16 to 2019-11-04; source msha-controller-operator-history
- **controller_controls_mine:** Kirby W  Leitch → Jones Quarry LLC; 1981-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kirby W  Leitch → Jones Quarry; 1981-11-16 to 2019-11-04; source msha-controller-operator-history
- **operator_operates_mine:** Jones Quarry LLC → Jones Quarry LLC; 2019-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian N  Hannrahan → Jones Quarry LLC; 2019-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian N  Hannrahan → Jones Quarry LLC; 2019-11-05 to current/open; source msha-controller-operator-history