# Relationship history for MSHA mine 1700914

Current hierarchy: **Matthew Douglas  Jones → DOUGLAS W. JONES, INC. → FREEDOM 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:** Rock Botton Quarry → FREEDOM QUARRY; 2013-07-29 to 2021-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Peter J  Bedard → FREEDOM QUARRY; 2013-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter J  Bedard → Rock Botton Quarry; 2013-07-29 to 2021-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Douglas Walter  Jones → FREEDOM QUARRY; 2019-04-22 to 2024-09-27; source msha-controller-operator-history
- **operator_operates_mine:** DOUGLAS W. JONES, INC. → FREEDOM QUARRY; 2021-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas Walter  Jones → DOUGLAS W. JONES, INC.; 2021-10-18 to 2024-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Matthew Douglas  Jones → FREEDOM QUARRY; 2024-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew Douglas  Jones → DOUGLAS W. JONES, INC.; 2024-09-28 to current/open; source msha-controller-operator-history