# Relationship history for MSHA mine 3608799

Current hierarchy: **Nate  Wilkinson; Garrett  Wilkinson; Ryan  Wilkinson → Wilkinson Aggregates, Inc. → Wise**

- 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:** Raymond D Showman & Sons Inc → Wise; 1999-08-01 to 2019-05-20; source msha-controller-operator-history
- **controller_controls_mine:** Lynette M  Showman et al → Wise; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynette M  Showman et al → Raymond D Showman & Sons Inc; 1999-08-01 to 2019-05-20; source msha-controller-operator-history
- **controller_controls_operator:** Larry L  Showman et al → Raymond D Showman & Sons Inc; 1999-08-01 to 2019-05-20; source msha-controller-operator-history
- **operator_operates_mine:** Wilkinson Aggregates, Inc. → Wise; 2019-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nate  Wilkinson et al → Wise; 2019-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nate  Wilkinson et al → Wilkinson Aggregates, Inc.; 2019-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan  Wilkinson et al → Wilkinson Aggregates, Inc.; 2019-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Garrett  Wilkinson et al → Wilkinson Aggregates, Inc.; 2019-05-21 to current/open; source msha-controller-operator-history