# Relationship history for MSHA mine 4405759

Current hierarchy: **Meade Duane → Silver Eagle Mining Company Inc → No 1 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Silver Eagle Mining Company Inc → No 1 Mine; 1981-09-01 to 1988-02-21; source msha-controller-operator-history
- **controller_controls_mine:** Adkins Delmar E → No 1 Mine; 1981-09-01 to 1988-02-21; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Delmar E → Silver Eagle Mining Company Inc; 1981-09-01 to 1988-02-21; source msha-controller-operator-history
- **operator_operates_mine:** Silver Eagle Mining Company Inc → No 1 Mine; 1988-02-22 to 1991-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Gross Charlotte → No 1 Mine; 1988-02-22 to 1991-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Gross Charlotte → Silver Eagle Mining Company Inc; 1988-02-22 to 1991-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Silver Eagle Mining Company Inc → No 1 Mine; 1991-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Meade Duane → No 1 Mine; 1991-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Meade Duane → Silver Eagle Mining Company Inc; 1991-10-01 to current/open; source msha-controller-operator-history