# Relationship history for MSHA mine 3102186

Current hierarchy: **Gregory D  Bryant → Stone Supply Inc. → Wilson Mine**

- 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:** Hughes Stone, Inc. → Wilson Mine; 2002-06-18 to 2007-02-04; source msha-controller-operator-history
- **controller_controls_mine:** Nathan Hughes → Wilson Mine; 2002-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nathan Hughes → Hughes Stone, Inc.; 2002-06-18 to 2007-02-04; source msha-controller-operator-history
- **operator_operates_mine:** Stone Supply Inc. → Wilson Mine; 2007-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gregory D  Bryant → Wilson Mine; 2007-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gregory D  Bryant → Stone Supply Inc.; 2007-02-05 to current/open; source msha-controller-operator-history