# Relationship history for MSHA mine 4503066

Current hierarchy: **Michael C Gilliardi; William M Gilliardi; Paulette J Gilliardi → Kennedy Creek Quarry Incorporated → Kennedy Creek Quarry**

- 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:** Kennedy Creek Quarry Incorporated → Kennedy Creek Quarry; 1985-11-01 to 2019-01-30; source msha-controller-operator-history
- **controller_controls_mine:** James L  Thurman → Kennedy Creek Quarry; 1985-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Thurman → Kennedy Creek Quarry Incorporated; 1985-11-01 to 2019-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Kennedy Creek Quarry Incorporated → Kennedy Creek Quarry; 2019-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William M Gilliardi et al → Kennedy Creek Quarry; 2019-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William M Gilliardi et al → Kennedy Creek Quarry Incorporated; 2019-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paulette J Gilliardi et al → Kennedy Creek Quarry Incorporated; 2019-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael C Gilliardi et al → Kennedy Creek Quarry Incorporated; 2019-01-31 to current/open; source msha-controller-operator-history