# Relationship history for MSHA mine 4003546

Current hierarchy: **HMA Holdings; James F  McCulloch; W Andrew  Wall; Alice M  Wall → Jones Bros. Contractors, LLC → Jones Parsons 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

- **controller_controls_mine:** W Andrew  Wall et al → Jones Parsons Quarry; 2019-04-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jones Bros. Contractors, LLC → Jones Parsons Quarry; 2021-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** W Andrew  Wall et al → Jones Bros. Contractors, LLC; 2021-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James F  McCulloch et al → Jones Bros. Contractors, LLC; 2021-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** HMA Holdings et al → Jones Bros. Contractors, LLC; 2021-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alice M  Wall et al → Jones Bros. Contractors, LLC; 2021-02-03 to current/open; source msha-controller-operator-history