# Relationship history for MSHA mine 4300420

Current hierarchy: **Henry A  LaGue Jr → La Gue Inc → LAGUE SLATE 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** La Gue Inc → LAGUE SLATE QUARRY; 1988-07-01 to 1992-08-13; source msha-controller-operator-history
- **controller_controls_mine:** Henry A  LaGue Jr → LAGUE SLATE QUARRY; 1988-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Henry A  LaGue Jr → La Gue Inc; 1988-07-01 to 1992-08-13; source msha-controller-operator-history
- **operator_operates_mine:** F L Brousseau Stone Products Inc → LAGUE SLATE QUARRY; 1992-08-14 to 1996-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Peter L Brousseau et al → LAGUE SLATE QUARRY; 1992-08-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter L Brousseau et al → F L Brousseau Stone Products Inc; 1992-08-14 to 1996-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Eric C Brousseau et al → F L Brousseau Stone Products Inc; 1992-08-14 to 1996-01-31; source msha-controller-operator-history
- **operator_operates_mine:** La Gue Inc → LAGUE SLATE QUARRY; 1996-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Henry A  LaGue Jr → La Gue Inc; 1996-02-01 to current/open; source msha-controller-operator-history