# Relationship history for MSHA mine 4104611

Current hierarchy: **Kelly  Hollingsworth → Hollingsworth Sand & Gravel LLC → Hollingsworth Sand & Gravel 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:** Hutchins Sand & Gravel → Hollingsworth Sand & Gravel LLC; 2006-07-24 to 2011-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Paul M Leighton → Hollingsworth Sand & Gravel LLC; 2006-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul M Leighton → Hutchins Sand & Gravel; 2006-07-24 to 2011-12-06; source msha-controller-operator-history
- **operator_operates_mine:** Hutchins Sand Co. → Hollingsworth Sand & Gravel LLC; 2011-12-07 to 2013-02-26; source msha-controller-operator-history
- **controller_controls_mine:** Elizabeth  Rebeles → Hollingsworth Sand & Gravel LLC; 2011-12-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elizabeth  Rebeles → Hutchins Sand Co.; 2011-12-07 to 2013-02-26; source msha-controller-operator-history
- **operator_operates_mine:** Hollingsworth Sand & Gravel LLC → Hollingsworth Sand & Gravel LLC; 2013-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kelly  Hollingsworth → Hollingsworth Sand & Gravel LLC; 2013-02-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kelly  Hollingsworth → Hollingsworth Sand & Gravel LLC; 2013-02-27 to current/open; source msha-controller-operator-history