# Relationship history for MSHA mine 3800556

Current hierarchy: **Jim F  Lineberger → Jim Lineberger Grading & Paving Inc → PARKER PIT**

- 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:** Donald  Parker → PARKER PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Donald Parker Construction Company Inc → PARKER PIT; 1979-01-01 to 1985-12-05; source msha-controller-operator-history
- **controller_controls_operator:** Donald  Parker → Donald Parker Construction Company Inc; 1979-01-01 to 1985-12-05; source msha-controller-operator-history
- **operator_operates_mine:** Jim Lineberger Grading & Paving Inc → PARKER PIT; 1985-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim F  Lineberger → PARKER PIT; 1985-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim F  Lineberger → Jim Lineberger Grading & Paving Inc; 1985-12-06 to current/open; source msha-controller-operator-history