# Relationship history for MSHA mine 4406093

Current hierarchy: **Arlie J  Lambert; Dennis B  Sutherland → Lambert & Arrington → Jakes Branch #3 Strip Clintwood Sm**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Dennis B  Sutherland et al → Jakes Branch #3 Strip Clintwood Sm; 1981-06-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lambert & Arrington → Jakes Branch #3 Strip Clintwood Sm; 1984-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis B  Sutherland et al → Lambert & Arrington; 1984-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arlie J  Lambert et al → Lambert & Arrington; 1984-05-01 to current/open; source msha-controller-operator-history