# Relationship history for MSHA mine 1601110

Current hierarchy: **Willie R  Harper; Ralph N  Harper → Barry's Haven Construction & Excavation LLC → Barry's Haven Constr & Excavation, 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Joiner Farms & Gravel → Barry's Haven Constr & Excavation, LLC; 1986-09-01 to 1999-06-07; source msha-controller-operator-history
- **controller_controls_mine:** Margaret  Joiner et al → Barry's Haven Constr & Excavation, LLC; 1986-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Margaret  Joiner et al → Joiner Farms & Gravel; 1986-09-01 to 1999-06-07; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Joiner et al → Joiner Farms & Gravel; 1986-09-01 to 1999-06-07; source msha-controller-operator-history
- **operator_operates_mine:** Barry's Haven Construction & Excavation LLC → Barry's Haven Constr & Excavation, LLC; 1999-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ralph N  Harper  et al → Barry's Haven Constr & Excavation, LLC; 1999-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph N  Harper  et al → Barry's Haven Construction & Excavation LLC; 1999-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Willie R  Harper  et al → Barry's Haven Construction & Excavation LLC; 1999-06-08 to current/open; source msha-controller-operator-history