# Relationship history for MSHA mine 1510356

Current hierarchy: **Hall Perry Jr → Why Not Mining Company Inc → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Anthony  Newsome → No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Newsome Coal Company → No 1; 1977-04-01 to 1979-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Newsome → Newsome Coal Company; 1977-04-01 to 1979-05-28; source msha-controller-operator-history
- **operator_operates_mine:** Why Not Mining Company Inc → No 1; 1979-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hall Perry Jr → No 1; 1979-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hall Perry Jr → Why Not Mining Company Inc; 1979-05-29 to current/open; source msha-controller-operator-history