# Relationship history for MSHA mine 1800802

Current hierarchy: **Arlene  Seaman → Perry Corner, Inc. → Goldsboro Sand & Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Perry Corner, Inc. → Goldsboro Sand & Gravel; 2016-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arlene  Seaman → Goldsboro Sand & Gravel; 2016-01-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arlene  Seaman → Perry Corner, Inc.; 2016-01-19 to current/open; source msha-controller-operator-history