# Relationship history for MSHA mine 4101886

Current hierarchy: **Harris Freddie E → Freddie E Harris Sand & Clay → Freddie Harris Sand & Clay**

- 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:** Freddie E Harris Sand & Clay → Freddie Harris Sand & Clay; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Harris Freddie E → Freddie Harris Sand & Clay; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harris Freddie E → Freddie E Harris Sand & Clay; 1950-01-01 to current/open; source msha-controller-operator-history