# Relationship history for MSHA mine 4405652

Current hierarchy: **Charles Warren → D D & M Mining Inc → No 6**

- 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:** Charles Warren → No 6; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Beller Steve Et Al → No 6; 1980-10-01 to 1990-03-25; source msha-controller-operator-history
- **operator_operates_mine:** Beechnut Mining Corp → No 6; 1981-05-01 to 1982-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Beller Steve Et Al → Beechnut Mining Corp; 1981-05-01 to 1982-06-22; source msha-controller-operator-history
- **operator_operates_mine:** D D & M Mining Inc → No 6; 1982-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles Warren → D D & M Mining Inc; 1982-06-23 to current/open; source msha-controller-operator-history