# Relationship history for MSHA mine 1511476

Current hierarchy: **Turner Charles & Bobby Joe Hensley → Wayne Coal Company → No 2 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:** Turner Charles & Bobby Joe Hensley → No 2 Mine; 1978-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pope & Taylor Coal Company Inc → No 2 Mine; 1978-08-01 to 1979-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Pope Don C → No 2 Mine; 1978-08-01 to 1979-04-16; source msha-controller-operator-history
- **controller_controls_operator:** Pope Don C → Pope & Taylor Coal Company Inc; 1978-08-01 to 1979-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Wayne Coal Company → No 2 Mine; 1979-04-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Turner Charles & Bobby Joe Hensley → Wayne Coal Company; 1979-04-17 to current/open; source msha-controller-operator-history