# Relationship history for MSHA mine 3002283

Current hierarchy: **Gisonda Mike → Kings Park Sand & Stone Inc → Kings Park Sand & Stone Incorporated**

- 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:** Huntington Ready Mixed Concrete Inc → Kings Park Sand & Stone Incorporated; 1950-01-01 to 1985-03-13; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Grausso Jr → Kings Park Sand & Stone Incorporated; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Grausso Jr → Huntington Ready Mixed Concrete Inc; 1950-01-01 to 1985-03-13; source msha-controller-operator-history
- **operator_operates_mine:** Kings Park Sand & Stone Inc → Kings Park Sand & Stone Incorporated; 1985-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gisonda Mike → Kings Park Sand & Stone Incorporated; 1985-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gisonda Mike → Kings Park Sand & Stone Inc; 1985-03-14 to current/open; source msha-controller-operator-history