# Relationship history for MSHA mine 4105015

Current hierarchy: **Larry A  Harris; Glenn S  Harris → G & L Harris Services → Dilley**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Larry A  Harris et al → Dilley; 2013-02-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G & L Harris Services → Dilley; 2013-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry A  Harris et al → G & L Harris Services; 2013-05-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Glenn S  Harris et al → G & L Harris Services; 2013-05-20 to current/open; source msha-controller-operator-history