# Relationship history for MSHA mine 4202698

Current hierarchy: **Mindy  Spilsbury; Brock Edward  Spilsbury → Crush It Company → Fredonia Yard**

- 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

- **operator_operates_mine:** Crush It Company → Fredonia Yard; 2019-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mindy  Spilsbury et al → Fredonia Yard; 2019-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mindy  Spilsbury et al → Crush It Company; 2019-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brock Edward  Spilsbury et al → Crush It Company; 2019-05-07 to current/open; source msha-controller-operator-history