# Relationship history for MSHA mine 4405893

Current hierarchy: **Harman Kendris (Ken) → Judy C Coal Company → Mine No 2**

- 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:** James C  Ball → Mine No 2; 1975-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Harman Kendris (Ken) → Mine No 2; 1979-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peggy-O Coal Company Inc → Mine No 2; 1982-05-01 to 1982-06-16; source msha-controller-operator-history
- **controller_controls_operator:** James C  Ball → Peggy-O Coal Company Inc; 1982-05-01 to 1982-06-16; source msha-controller-operator-history
- **operator_operates_mine:** Judy C Coal Company → Mine No 2; 1982-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harman Kendris (Ken) → Judy C Coal Company; 1982-06-17 to current/open; source msha-controller-operator-history