# Relationship history for MSHA mine 2602737

Current hierarchy: **Jerry Dale  Jones; Rowdy Ellis  Olds → JCR Development, LLC → JCR Metso Power Screen**

- 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:** Jerry Dale  Jones  et al → JCR Metso Power Screen; 2007-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JCR Development, LLC → JCR Metso Power Screen; 2013-03-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry Dale  Jones  et al → JCR Development, LLC; 2013-03-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rowdy Ellis  Olds  et al → JCR Development, LLC; 2013-03-26 to current/open; source msha-controller-operator-history