# Relationship history for MSHA mine 4002895

Current hierarchy: **Hitchcock Stanley Ray → Hitchcock Coal Company → Area No 4**

- 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:** Hitchcock Stanley Ray → Area No 4; 1981-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hitchcock Coal Company → Area No 4; 1985-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hitchcock Stanley Ray → Hitchcock Coal Company; 1985-07-01 to current/open; source msha-controller-operator-history