# Relationship history for MSHA mine 4604778

Current hierarchy: **Holsclaw J Douglas → Southern Eagle Mining Corp → Satin Sewell No 2 Mine**

- 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:** Satin Sewell Inc → Satin Sewell No 2 Mine; 1975-06-01 to 1981-10-26; source msha-controller-operator-history
- **controller_controls_mine:** Hamner Keith → Satin Sewell No 2 Mine; 1975-06-01 to 1981-10-26; source msha-controller-operator-history
- **controller_controls_operator:** Hamner Keith → Satin Sewell Inc; 1975-06-01 to 1981-10-26; source msha-controller-operator-history
- **operator_operates_mine:** Southern Eagle Mining Corp → Satin Sewell No 2 Mine; 1981-10-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Holsclaw J Douglas → Satin Sewell No 2 Mine; 1981-10-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Holsclaw J Douglas → Southern Eagle Mining Corp; 1981-10-27 to current/open; source msha-controller-operator-history