# Relationship history for MSHA mine 1511385

Current hierarchy: **Williamson Charles O → Seminole Mining Company → No 3 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:** Lowe Arnold Jr & Eddie Noble → No 3 Mine; 1976-05-05 to 1979-01-07; source msha-controller-operator-history
- **operator_operates_mine:** C L & N Coal Company → No 3 Mine; 1978-06-01 to 1979-01-07; source msha-controller-operator-history
- **controller_controls_operator:** Lowe Arnold Jr & Eddie Noble → C L & N Coal Company; 1978-06-01 to 1979-01-07; source msha-controller-operator-history
- **controller_controls_mine:** Williamson Charles O → No 3 Mine; 1978-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Seminole Mining Company → No 3 Mine; 1979-01-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Williamson Charles O → Seminole Mining Company; 1979-01-08 to current/open; source msha-controller-operator-history