# Relationship history for MSHA mine 4406062

Current hierarchy: **Arlie J  Lambert; Dennis B  Sutherland → Lambert Coal Company Inc → #46**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Arlie J  Lambert et al → #46; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lambert Coal Company Inc → #46; 1984-03-01 to 1995-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Arlie J  Lambert et al → Lambert Coal Company Inc; 1984-03-01 to 1995-02-26; source msha-controller-operator-history
- **controller_controls_operator:** Dennis B  Sutherland et al → Lambert Coal Company Inc; 1984-03-01 to 1995-02-26; source msha-controller-operator-history
- **controller_controls_mine:** Noah B  Lambert → #46; 1991-12-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Nbl Coal Company Inc → #46; 1995-02-27 to 1995-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Noah B  Lambert → Nbl Coal Company Inc; 1995-02-27 to 1995-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Mining Inc → #46; 1995-07-01 to 1997-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Lambert Larry → #46; 1995-07-01 to 1997-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Lambert Larry → Leslie Mining Inc; 1995-07-01 to 1997-04-23; source msha-controller-operator-history
- **operator_operates_mine:** Lambert Coal Company Inc → #46; 1997-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis B  Sutherland et al → Lambert Coal Company Inc; 1997-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arlie J  Lambert et al → Lambert Coal Company Inc; 1997-04-24 to current/open; source msha-controller-operator-history