# Relationship history for MSHA mine 4400024

Current hierarchy: **John  Gudelsky → Chantilly Crushed Stone Inc → Chantilly Crushed 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:** Chantilly Crushed Stone Inc → Chantilly Crushed Stone Incorporated; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  Gudelsky  et al → Chantilly Crushed Stone Incorporated; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Gudelsky  et al → Chantilly Crushed Stone Inc; 1950-01-01 to current/open; source msha-controller-operator-history