# Relationship history for MSHA mine 3003831

Current hierarchy: **Edward  Hulme → Edward Hulme Inc → Quakertown 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

- **controller_controls_mine:** Edward  Hulme → Quakertown Pit; 1999-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Edward Hulme Inc → Quakertown Pit; 2012-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward  Hulme → Edward Hulme Inc; 2012-08-01 to current/open; source msha-controller-operator-history