# Relationship history for MSHA mine 3800134

Current hierarchy: **C Ray  Miles → Lugoff Sand Company, Inc. → Lugoff Sand Company, Inc.**

- 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:** Kershaw County Sand Company Inc → Lugoff Sand Company, Inc.; 1950-01-01 to 1989-11-01; source msha-controller-operator-history
- **controller_controls_mine:** O Alex  Hicklin Sr → Lugoff Sand Company, Inc.; 1950-01-01 to 1989-11-01; source msha-controller-operator-history
- **controller_controls_operator:** O Alex  Hicklin Sr → Kershaw County Sand Company Inc; 1950-01-01 to 1989-11-01; source msha-controller-operator-history
- **operator_operates_mine:** Lugoff Sand Company, Inc. → Lugoff Sand Company, Inc.; 1989-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** C Ray  Miles → Lugoff Sand Company, Inc.; 1989-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** C Ray  Miles → Lugoff Sand Company, Inc.; 1989-11-02 to current/open; source msha-controller-operator-history