# Relationship history for MSHA mine 3400569

Current hierarchy: **George Paul  Glover → Youngman Rock Inc → Eufaula No 50**

- 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:** H D Youngman Contractor Inc → Eufaula No 50; 1950-01-01 to 1992-02-29; source msha-controller-operator-history
- **controller_controls_mine:** H D  Youngman → Eufaula No 50; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H D  Youngman → H D Youngman Contractor Inc; 1950-01-01 to 1992-02-29; source msha-controller-operator-history
- **operator_operates_mine:** Youngman Rock Inc → Eufaula No 50; 1992-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** George Paul  Glover → Eufaula No 50; 1992-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George Paul  Glover → Youngman Rock Inc; 1992-03-01 to current/open; source msha-controller-operator-history