# Relationship history for MSHA mine 4405577

Current hierarchy: **Hunsaker Kenneth → Hunsaker Coal Company → No 1 Strip**

- 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

- **controller_controls_mine:** Hunsaker Kenneth → No 1 Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B & H Coal Company → No 1 Strip; 1981-01-01 to 1981-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Blanton Jack R & Jack S--Kenneth Hunsaker → No 1 Strip; 1981-01-01 to 1981-08-16; source msha-controller-operator-history
- **controller_controls_operator:** Blanton Jack R & Jack S--Kenneth Hunsaker → B & H Coal Company; 1981-01-01 to 1981-08-16; source msha-controller-operator-history
- **operator_operates_mine:** Hunsaker Coal Company → No 1 Strip; 1981-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hunsaker Kenneth → Hunsaker Coal Company; 1981-08-17 to current/open; source msha-controller-operator-history