# Relationship history for MSHA mine 3609932

Current hierarchy: **Mark  Popple; David  Popple → Hudson Anthracite Inc → Hudson Bank No. 1 Operation**

- 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

- **controller_controls_mine:** David  Popple et al → Hudson Bank No. 1 Operation; 1995-12-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hudson Anthracite Inc → Hudson Bank No. 1 Operation; 2011-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Popple et al → Hudson Anthracite Inc; 2011-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark  Popple et al → Hudson Anthracite Inc; 2011-06-07 to current/open; source msha-controller-operator-history