# Relationship history for MSHA mine 4003463

Current hierarchy: **Francisco  Diego → C Wall Stone LLC → Brown Town 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** J & M Farms Stone → Brown Town Quarry; 2016-08-23 to 2023-09-12; source msha-controller-operator-history
- **controller_controls_mine:** Jerry M  Maynard → Brown Town Quarry; 2016-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry M  Maynard → J & M Farms Stone; 2016-08-23 to 2023-09-12; source msha-controller-operator-history
- **controller_controls_mine:** Francisco  Diego → Brown Town Quarry; 2022-01-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Seawall Stone → Brown Town Quarry; 2023-09-13 to 2026-09-01; source msha-controller-operator-history
- **controller_controls_operator:** Francisco  Diego → Seawall Stone; 2023-09-13 to 2026-09-01; source msha-controller-operator-history
- **controller_controls_mine:** Francisco  Diego → Brown Town Quarry; 2026-05-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C Wall Stone LLC → Brown Town Quarry; 2026-09-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Francisco  Diego → C Wall Stone LLC; 2026-09-02 to current/open; source msha-controller-operator-history