# Relationship history for MSHA mine 4406702

Current hierarchy: **Stephen D  Halsey; Carl A  Hamilton → Lone Wolf Coal 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

- **controller_controls_mine:** Justus Donald Et Al → No 1 Mine; 1989-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lick Branch Mining Corp → No 1 Mine; 1992-07-01 to 1993-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Justus Donald Et Al → Lick Branch Mining Corp; 1992-07-01 to 1993-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Lick Branch Mining Inc → No 1 Mine; 1993-04-19 to 1996-08-25; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Bill → No 1 Mine; 1993-04-19 to 1996-08-25; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Bill → Lick Branch Mining Inc; 1993-04-19 to 1996-08-25; source msha-controller-operator-history
- **operator_operates_mine:** Lone Wolf Coal Company Inc → No 1 Mine; 1996-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stephen D  Halsey et al → No 1 Mine; 1996-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen D  Halsey et al → Lone Wolf Coal Company Inc; 1996-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl A  Hamilton et al → Lone Wolf Coal Company Inc; 1996-08-26 to current/open; source msha-controller-operator-history