# Relationship history for MSHA mine 0801420

Current hierarchy: **William  Coughlin; Roy W  Yates; Phillip  Findlay → Wayne's Aggregate & Material's LLC → Wayne's Aggregate & Material's LLC**

- 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's Aggregate & Material's LLC → Wayne's Aggregate & Material's LLC; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Phillip  Findlay et al → Wayne's Aggregate & Material's LLC; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Phillip  Findlay et al → Wayne's Aggregate & Material's LLC; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William  Coughlin et al → Wayne's Aggregate & Material's LLC; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roy W  Yates et al → Wayne's Aggregate & Material's LLC; 2018-05-01 to current/open; source msha-controller-operator-history