# Relationship history for MSHA mine 4405445

Current hierarchy: **Mc Clanahan Donald Keith → Lynn Coal Company Inc → No 4**

- 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:** Woodman Three Mining Inc → No 4; 1976-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Clanahan Donald Keith → No 4; 1977-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Freeman Mining Inc → No 4; 1980-06-01 to 1981-08-03; source msha-controller-operator-history
- **controller_controls_operator:** Woodman Three Mining Inc → Freeman Mining Inc; 1980-06-01 to 1981-08-03; source msha-controller-operator-history
- **operator_operates_mine:** Lynn Coal Company Inc → No 4; 1981-08-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clanahan Donald Keith → Lynn Coal Company Inc; 1981-08-04 to current/open; source msha-controller-operator-history