# Relationship history for MSHA mine 4104126

Current hierarchy: **Edward R  Coleman; H  Coleman → Yarrington Road Materials → YARRINGTON ROAD MATERIALS**

- 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:** Yarrington Road Materials → YARRINGTON ROAD MATERIALS; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edward R  Coleman et al → YARRINGTON ROAD MATERIALS; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward R  Coleman et al → Yarrington Road Materials; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H  Coleman et al → Yarrington Road Materials; 1999-12-01 to current/open; source msha-controller-operator-history