# Relationship history for MSHA mine 4604524

Current hierarchy: **Harry G  Cooke; Larry David  Cochran → Rich Creek Mining Company Inc → No 3**

- 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:** Dickenson Carl J → No 3; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Laura Coal & Coke Company Inc → No 3; 1975-01-01 to 1977-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Dickenson Carl J → Laura Coal & Coke Company Inc; 1975-01-01 to 1977-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Harry G  Cooke et al → No 3; 1976-09-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rich Creek Mining Company Inc → No 3; 1977-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry G  Cooke et al → Rich Creek Mining Company Inc; 1977-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry David  Cochran et al → Rich Creek Mining Company Inc; 1977-04-01 to current/open; source msha-controller-operator-history