# Relationship history for MSHA mine 4002657

Current hierarchy: **Miller Charles R Jr → R & M Mining Company Inc → 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

- **operator_operates_mine:** Kimball Coal Company → No 1; 1980-11-01 to 1981-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Wooten John & Sanford Wynne → No 1; 1980-11-01 to 1981-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Wooten John & Sanford Wynne → Kimball Coal Company; 1980-11-01 to 1981-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Kimball Coal Company → No 1; 1981-04-30 to 1982-04-19; source msha-controller-operator-history
- **controller_controls_mine:** Shipley Bradley → No 1; 1981-04-30 to 1982-04-19; source msha-controller-operator-history
- **controller_controls_operator:** Shipley Bradley → Kimball Coal Company; 1981-04-30 to 1982-04-19; source msha-controller-operator-history
- **operator_operates_mine:** R & M Mining Company Inc → No 1; 1982-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Miller Charles R Jr → No 1; 1982-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Miller Charles R Jr → R & M Mining Company Inc; 1982-04-20 to current/open; source msha-controller-operator-history