# Relationship history for MSHA mine 4002876

Current hierarchy: **Hasting Edward → H & W Mining Company Inc → No 1**

- 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:** K C Mining Company → No 1; 1985-01-01 to 1986-02-02; source msha-controller-operator-history
- **controller_controls_mine:** Ketchersid Archie → No 1; 1985-01-01 to 1986-02-02; source msha-controller-operator-history
- **controller_controls_operator:** Ketchersid Archie → K C Mining Company; 1985-01-01 to 1986-02-02; source msha-controller-operator-history
- **operator_operates_mine:** H & W Mining Company Inc → No 1; 1986-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hasting Edward Et Al → No 1; 1986-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hasting Edward Et Al → H & W Mining Company Inc; 1986-02-03 to current/open; source msha-controller-operator-history