# Relationship history for MSHA mine 1901065

Current hierarchy: **Janet  Bearce → Casoli Sand & Gravel Inc → JENI MAY**

- 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

- **controller_controls_mine:** Janet  Bearce → JENI MAY; 1991-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Casoli Sand & Gravel Inc → JENI MAY; 1998-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janet  Bearce → Casoli Sand & Gravel Inc; 1998-12-01 to current/open; source msha-controller-operator-history