# Relationship history for MSHA mine 4202623

Current hierarchy: **William Jeff  Newman; Mark  Newman → Newman Leasing → Jones Pit Crusher**

- 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:** Newman Construction Inc → Jones Pit Crusher; 2014-03-17 to 2020-03-23; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Newman → Jones Pit Crusher; 2014-03-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Newman → Newman Construction Inc; 2014-03-17 to 2020-03-23; source msha-controller-operator-history
- **operator_operates_mine:** Newman Leasing → Jones Pit Crusher; 2020-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark  Newman et al → Jones Pit Crusher; 2020-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Newman et al → Newman Leasing; 2020-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William Jeff  Newman et al → Newman Leasing; 2020-03-24 to current/open; source msha-controller-operator-history