# Relationship history for MSHA mine 2001650

Current hierarchy: **James E  Moore → J E Moore Sand & Gravel Inc → J.E. MOORE SAND & GRAVEL, INC.**

- 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:** J E Moore Sand & Gravel Inc → J.E. MOORE SAND & GRAVEL, INC.; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James E  Moore → J.E. MOORE SAND & GRAVEL, INC.; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Moore → J E Moore Sand & Gravel Inc; 1950-01-01 to current/open; source msha-controller-operator-history