# Relationship history for MSHA mine 4608569

Current hierarchy: **Hagerman Bruce & William East → R & N Coal Company Inc → Middle Fork No 2 (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

- **operator_operates_mine:** R & N Coal Company → Middle Fork No 2 (1); 1996-05-01 to 1997-06-17; source msha-controller-operator-history
- **controller_controls_mine:** Johnston Frankie → Middle Fork No 2 (1); 1996-05-01 to 1997-06-17; source msha-controller-operator-history
- **controller_controls_operator:** Johnston Frankie → R & N Coal Company; 1996-05-01 to 1997-06-17; source msha-controller-operator-history
- **operator_operates_mine:** R & N Coal Company Inc → Middle Fork No 2 (1); 1997-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hagerman Bruce & William East → Middle Fork No 2 (1); 1997-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hagerman Bruce & William East → R & N Coal Company Inc; 1997-06-18 to current/open; source msha-controller-operator-history