# Relationship history for MSHA mine 3609449

Current hierarchy: **Gerald P  Peck → Gerald P Peck Sole Proprietor → Murphy Quarry #1**

- 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:** Gerald P Peck Sole Proprietor → Murphy Quarry #1; 2006-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gerald P  Peck → Murphy Quarry #1; 2006-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald P  Peck → Gerald P Peck Sole Proprietor; 2006-04-30 to current/open; source msha-controller-operator-history