# Relationship history for MSHA mine 1519406

Current hierarchy: **Betty  Cottingham; Joe  Cottingham → Cottingham Properties, LLC → Cottingham Mines**

- 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:** Cottingham Properties, LLC → Cottingham Mines; 2009-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joe  Cottingham et al → Cottingham Mines; 2009-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Cottingham et al → Cottingham Properties, LLC; 2009-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Betty  Cottingham et al → Cottingham Properties, LLC; 2009-05-22 to current/open; source msha-controller-operator-history