# Relationship history for MSHA mine 1512324

Current hierarchy: **Clem Kenneth Wayne → Wayne Coal Company → 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

- **controller_controls_mine:** Jackson Roy Dan → No 1 Mine; 1977-03-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Penelee Coal Company Inc → No 1 Mine; 1980-05-01 to 1986-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Jackson Roy Dan → Penelee Coal Company Inc; 1980-05-01 to 1986-01-04; source msha-controller-operator-history
- **controller_controls_mine:** Clem Kenneth Wayne Et Al → No 1 Mine; 1985-04-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wayne Coal Company → No 1 Mine; 1986-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clem Kenneth Wayne Et Al → Wayne Coal Company; 1986-01-05 to current/open; source msha-controller-operator-history