# Relationship history for MSHA mine 3605992

Current hierarchy: **Moreau Donald F → A F Moreau & Sons Inc → Moreau Strip**

- 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:** A F Moreau & Sons Inc → Moreau Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Moreau Donald F → Moreau Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Moreau Donald F → A F Moreau & Sons Inc; 1950-01-01 to current/open; source msha-controller-operator-history