# Relationship history for MSHA mine 4201563

Current hierarchy: **Roy Leonard A Sr → Moulin Rouge Inc → Frandsen-Alvey Underground**

- 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

- **controller_controls_mine:** Roy Leonard A Sr → Frandsen-Alvey Underground; 1979-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Moulin Rouge Inc → Frandsen-Alvey Underground; 1979-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roy Leonard A Sr → Moulin Rouge Inc; 1979-04-01 to current/open; source msha-controller-operator-history