# Relationship history for MSHA mine 1511670

Current hierarchy: **Charles  Hoke; Anne  Hoke → Parkway Coal Company → New Horton Tipple**

- 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:** Anne  Hoke et al → New Horton Tipple; 1976-07-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Parkway Coal Company → New Horton Tipple; 1978-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anne  Hoke et al → Parkway Coal Company; 1978-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Hoke et al → Parkway Coal Company; 1978-11-01 to current/open; source msha-controller-operator-history