# Relationship history for MSHA mine 4606452

Current hierarchy: **Bean F R Jr → Cedar Bend Coal Company Inc → No 3 Surface**

- 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:** Adkins James H → No 3 Surface; 1980-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Perry Milton → No 3 Surface; 1980-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Beech Knob Coal Company → No 3 Surface; 1981-11-01 to 1984-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Perry Milton → Beech Knob Coal Company; 1981-11-01 to 1984-07-23; source msha-controller-operator-history
- **controller_controls_mine:** Bean F R Jr → No 3 Surface; 1984-03-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** James H Adkins & Sons Inc → No 3 Surface; 1984-07-24 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_operator:** Adkins James H → James H Adkins & Sons Inc; 1984-07-24 to 1984-09-03; source msha-controller-operator-history
- **operator_operates_mine:** Cedar Bend Coal Company Inc → No 3 Surface; 1984-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bean F R Jr → Cedar Bend Coal Company Inc; 1984-09-04 to current/open; source msha-controller-operator-history