# Relationship history for MSHA mine 4503573

Current hierarchy: **James H  Dean → James Dean Construction Inc → JDC Crushing**

- 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:** James Dean Construction Inc → JDC Crushing; 2004-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James H  Dean → JDC Crushing; 2004-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James H  Dean → James Dean Construction Inc; 2004-11-29 to current/open; source msha-controller-operator-history