# Relationship history for MSHA mine 0202131

Current hierarchy: **Stokes Lyman - Joseph C Cooke → Cooke & Stokes Company → Golden Horseshoe**

- 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:** Cooke & Stokes Company → Golden Horseshoe; 1983-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stokes Lyman - Joseph C Cooke Et Al → Golden Horseshoe; 1983-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stokes Lyman - Joseph C Cooke Et Al → Cooke & Stokes Company; 1983-01-01 to current/open; source msha-controller-operator-history