# Relationship history for MSHA mine 1517512

Current hierarchy: **Robert W  Miller; Dean  Miller → Miller Brothers Coal Inc → Long Fork #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:** Manning Kenneth Don → Long Fork #1; 1981-01-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dean  Miller Et Al → Long Fork #1; 1981-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Manning Coal Corp → Long Fork #1; 1994-03-01 to 1995-03-20; source msha-controller-operator-history
- **controller_controls_operator:** Manning Kenneth Don → Manning Coal Corp; 1994-03-01 to 1995-03-20; source msha-controller-operator-history
- **operator_operates_mine:** Miller Brothers Coal Inc → Long Fork #1; 1995-03-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dean  Miller Et Al → Miller Brothers Coal Inc; 1995-03-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert W  Miller Et Al → Miller Brothers Coal Inc; 1995-03-21 to current/open; source msha-controller-operator-history