# Relationship history for MSHA mine 1517779

Current hierarchy: **Aaron  Justice Jr → Aaron Coal Company Llc → No 1**

- 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

- **controller_controls_mine:** Williams Darrell → No 1; 1992-01-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Narrows Branch Coal Inc → No 1; 1996-04-01 to 1998-11-02; source msha-controller-operator-history
- **controller_controls_operator:** Williams Darrell → Narrows Branch Coal Inc; 1996-04-01 to 1998-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Grants Branch Coal Inc → No 1; 1998-11-03 to 1999-11-18; source msha-controller-operator-history
- **controller_controls_mine:** Bowe Michael → No 1; 1998-11-03 to 1999-11-18; source msha-controller-operator-history
- **controller_controls_operator:** Bowe Michael → Grants Branch Coal Inc; 1998-11-03 to 1999-11-18; source msha-controller-operator-history
- **operator_operates_mine:** Aaron Coal Company Llc → No 1; 1999-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Aaron  Justice Jr → No 1; 1999-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aaron  Justice Jr → Aaron Coal Company Llc; 1999-11-19 to current/open; source msha-controller-operator-history