# Relationship history for MSHA mine 4603386

Current hierarchy: **Brown Charles E → Mackline Coal 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** S & M Coal Company → No 3; 1950-01-01 to 1980-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Shannon Harold → No 3; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shannon Harold → S & M Coal Company; 1950-01-01 to 1980-05-07; source msha-controller-operator-history
- **operator_operates_mine:** Rhonda Coal Company → No 3; 1980-05-08 to 1982-05-09; source msha-controller-operator-history
- **controller_controls_mine:** Hatfield Richard & J Charles Lockhart Et Al → No 3; 1980-05-08 to 1982-05-09; source msha-controller-operator-history
- **controller_controls_operator:** Hatfield Richard & J Charles Lockhart Et Al → Rhonda Coal Company; 1980-05-08 to 1982-05-09; source msha-controller-operator-history
- **controller_controls_mine:** Brown Charles E → No 3; 1980-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mackline Coal Company Inc → No 3; 1982-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brown Charles E → Mackline Coal Company Inc; 1982-05-10 to current/open; source msha-controller-operator-history