# Relationship history for MSHA mine 1700119

Current hierarchy: **John (Jake) E  Barbour → Jake Barbour, Inc. → Washington Pit #2**

- 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 → Washington Pit #2; 1950-01-01 to 2010-11-17; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Hall  et al → Washington Pit #2; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Hall  et al → George C Hall; 1950-01-01 to 2010-11-17; source msha-controller-operator-history
- **controller_controls_mine:** John (Jake) E  Barbour → Washington Pit #2; 2006-06-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** George C. Hall & Sons, Inc. → Washington Pit #2; 2010-11-18 to 2025-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Hall  et al → George C. Hall & Sons, Inc.; 2010-11-18 to 2025-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Jake Barbour, Inc. → Washington Pit #2; 2025-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John (Jake) E  Barbour → Jake Barbour, Inc.; 2025-10-01 to current/open; source msha-controller-operator-history