# Relationship history for MSHA mine 4702562

Current hierarchy: **Keith  Baughman; Shirley  Baughman → Baughman Trucking & Excavating LLC → Baughman Trucking & Excavating LLC**

- 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

- **operator_operates_mine:** Baughman Concrete Inc → Baughman Trucking & Excavating LLC; 1979-01-01 to 2019-06-25; source msha-controller-operator-history
- **controller_controls_mine:** Keith  Baughman et al → Baughman Trucking & Excavating LLC; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith  Baughman et al → Baughman Concrete Inc; 1979-01-01 to 2019-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Shirley  Baughman et al → Baughman Concrete Inc; 1979-01-01 to 2019-06-25; source msha-controller-operator-history
- **controller_controls_mine:** Shirley  Baughman et al → Baughman Trucking & Excavating LLC; 1995-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Baughman Trucking & Excavating LLC → Baughman Trucking & Excavating LLC; 2019-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shirley  Baughman et al → Baughman Trucking & Excavating LLC; 2019-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith  Baughman et al → Baughman Trucking & Excavating LLC; 2019-06-26 to current/open; source msha-controller-operator-history