# Relationship history for MSHA mine 4105832

Current hierarchy: **Randell W Owens → Nelson Bros. Materials LLC. → Gainesville Sand & Gravel**

- 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:** Nelson Bros. Materials LLC. → Gainesville Sand & Gravel; 2026-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Randell W Owens → Gainesville Sand & Gravel; 2026-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randell W Owens → Nelson Bros. Materials LLC.; 2026-01-05 to current/open; source msha-controller-operator-history