# Relationship history for MSHA mine 1700285

Current hierarchy: **John (Jake) E  Barbour → Jake Barbour, Inc. → Pease Pit**

- 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:** George C Hall & Sons Inc → Pease Pit; 1950-01-01 to 2025-08-10; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Hall  et al → Pease Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Hall  et al → George C Hall & Sons Inc; 1950-01-01 to 2025-08-10; source msha-controller-operator-history
- **controller_controls_mine:** John (Jake) E  Barbour → Pease Pit; 2006-06-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jake Barbour, Inc. → Pease Pit; 2025-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John (Jake) E  Barbour → Jake Barbour, Inc.; 2025-08-11 to current/open; source msha-controller-operator-history