# Relationship history for MSHA mine 1901244

Current hierarchy: **George F  Rousseau; Everett  Jabour → New England Construction Materials LLC → New England Construction Materials 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** New England Construction Materials LLC → New England Construction Materials LLC; 2014-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** George F  Rousseau et al → New England Construction Materials LLC; 2014-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George F  Rousseau et al → New England Construction Materials LLC; 2014-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Everett  Jabour et al → New England Construction Materials LLC; 2014-03-25 to current/open; source msha-controller-operator-history