# Relationship history for MSHA mine 4407383

Current hierarchy: **Patrick Gray  Matthews; Meredith  Morris Matthews → JTAM LLC → Matthews Sand & Gravel 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** JTAM LLC → Matthews Sand & Gravel LLC; 2018-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Patrick Gray  Matthews et al → Matthews Sand & Gravel LLC; 2018-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick Gray  Matthews et al → JTAM LLC; 2018-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meredith  Morris Matthews et al → JTAM LLC; 2018-04-02 to current/open; source msha-controller-operator-history