# Relationship history for MSHA mine 1517443

Current hierarchy: **Robert W  Miller; Dean  Miller → Miller Brothers Coal Inc → Pike County 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:** Dean  Miller Et Al → Pike County No 1; 1981-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Florida Progress Corporation → Pike County No 1; 1989-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M & V Land Corp → Pike County No 1; 1993-08-01 to 1994-05-11; source msha-controller-operator-history
- **controller_controls_mine:** Hall Vickii & Misti Ratliff → Pike County No 1; 1993-08-01 to 1994-05-11; source msha-controller-operator-history
- **controller_controls_operator:** Hall Vickii & Misti Ratliff → M & V Land Corp; 1993-08-01 to 1994-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Kentucky May Coal Company Inc → Pike County No 1; 1994-05-12 to 1994-05-30; source msha-controller-operator-history
- **controller_controls_operator:** Florida Progress Corporation → Kentucky May Coal Company Inc; 1994-05-12 to 1994-05-30; source msha-controller-operator-history
- **operator_operates_mine:** Miller Brothers Coal Inc → Pike County No 1; 1994-05-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dean  Miller Et Al → Miller Brothers Coal Inc; 1994-05-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert W  Miller Et Al → Miller Brothers Coal Inc; 1994-05-31 to current/open; source msha-controller-operator-history