# Relationship history for MSHA mine 2402561

Current hierarchy: **Myrna F  Allhands; Daniel W  Allhands → Allhands Excavation LLC → Anderson Pit**

- 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

- **operator_operates_mine:** Allhands Excavation LLC → Anderson Pit; 2009-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniel W  Allhands et al → Anderson Pit; 2009-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel W  Allhands et al → Allhands Excavation LLC; 2009-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Myrna F  Allhands et al → Allhands Excavation LLC; 2009-11-17 to current/open; source msha-controller-operator-history