# Relationship history for MSHA mine 4606816

Current hierarchy: **Kinder Jack L → Triple D Coal Company Of West Virginia Inc → Mine 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Benham Group Ltd Et Al → Mine No 1; 1984-06-01 to 1985-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Skvaril Paul → Mine No 1; 1984-06-01 to 1985-04-28; source msha-controller-operator-history
- **controller_controls_operator:** Skvaril Paul → Benham Group Ltd Et Al; 1984-06-01 to 1985-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Triple D Coal Company Of W Va Inc → Mine No 1; 1985-04-29 to 1985-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Dotson Earl Sr → Mine No 1; 1985-04-29 to 1985-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Dotson Earl Sr → Triple D Coal Company Of W Va Inc; 1985-04-29 to 1985-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Triple D Coal Company Of West Virginia Inc → Mine No 1; 1985-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kinder Jack L → Mine No 1; 1985-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kinder Jack L → Triple D Coal Company Of West Virginia Inc; 1985-06-28 to current/open; source msha-controller-operator-history