# Relationship history for MSHA mine 4105002

Current hierarchy: **Barbara A  Parrish → Young-Blood Stone Company LLC → Young-Blood Stone Company LLC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Young-Blood Stone Company → Young-Blood Stone Company LLC; 2013-02-19 to 2014-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Eleuterio  Gonzales et al → Young-Blood Stone Company LLC; 2013-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eleuterio  Gonzales et al → Young-Blood Stone Company; 2013-02-19 to 2014-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Zac T  Chesser et al → Young-Blood Stone Company; 2013-02-19 to 2014-02-18; source msha-controller-operator-history
- **operator_operates_mine:** Young-Blood Stone Company LLC → Young-Blood Stone Company LLC; 2014-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Barbara A  Parrish → Young-Blood Stone Company LLC; 2014-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Barbara A  Parrish → Young-Blood Stone Company LLC; 2014-02-19 to current/open; source msha-controller-operator-history