# Relationship history for MSHA mine 4606950

Current hierarchy: **Brown Gary M Jr → Cindy B Coal Inc → No 16**

- 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:** Chafin John C Sr → No 16; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Chafin Coal Company Inc → No 16; 1985-06-01 to 1985-09-15; source msha-controller-operator-history
- **controller_controls_operator:** Chafin John C Sr → Chafin Coal Company Inc; 1985-06-01 to 1985-09-15; source msha-controller-operator-history
- **operator_operates_mine:** Triple C Construction → No 16; 1985-09-16 to 1987-07-27; source msha-controller-operator-history
- **controller_controls_mine:** Jackson Gary K → No 16; 1985-09-16 to 1987-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Jackson Gary K → Triple C Construction; 1985-09-16 to 1987-07-27; source msha-controller-operator-history
- **operator_operates_mine:** Laker Industries Inc → No 16; 1987-07-28 to 1988-09-25; source msha-controller-operator-history
- **controller_controls_mine:** Dalton Darrell → No 16; 1987-07-28 to 1988-09-25; source msha-controller-operator-history
- **controller_controls_operator:** Dalton Darrell → Laker Industries Inc; 1987-07-28 to 1988-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Chafin Coal Company Inc → No 16; 1988-09-26 to 1988-11-07; source msha-controller-operator-history
- **controller_controls_operator:** Chafin John C Sr → Chafin Coal Company Inc; 1988-09-26 to 1988-11-07; source msha-controller-operator-history
- **operator_operates_mine:** Cindy B Coal Inc → No 16; 1988-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brown Gary M Jr → No 16; 1988-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brown Gary M Jr → Cindy B Coal Inc; 1988-11-08 to current/open; source msha-controller-operator-history