# Relationship history for MSHA mine 1601615

Current hierarchy: **Jeffrey  Henderson; Lawrence  Green; Janet  Cagley → River Road Materials, LLC → River Road**

- 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:** River Road Materials, LLC → River Road; 2023-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lawrence  Green et al → River Road; 2023-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lawrence  Green et al → River Road Materials, LLC; 2023-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey  Henderson et al → River Road Materials, LLC; 2023-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janet  Cagley et al → River Road Materials, LLC; 2023-06-27 to current/open; source msha-controller-operator-history