# Relationship history for MSHA mine 1518670

Current hierarchy: **Wayne M  Reid → Wayne Reid & Sons Construction Co. → Reid & Sons Construction**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Wayne Reid & Sons Construction Co. → Reid & Sons Construction; 2003-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wayne M  Reid → Reid & Sons Construction; 2003-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wayne M  Reid → Wayne Reid & Sons Construction Co.; 2003-09-14 to current/open; source msha-controller-operator-history