# Relationship history for MSHA mine 2002035

Current hierarchy: **CRH PLC → Woodland Paving Company → WOODWORTH 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

- **operator_operates_mine:** Woodland Paving Company → WOODWORTH PIT; 1950-01-01 to 1985-09-25; source msha-controller-operator-history
- **controller_controls_mine:** Velting William → WOODWORTH PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Velting William → Woodland Paving Company; 1950-01-01 to 1985-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Woodland Paving Company → WOODWORTH PIT; 1985-09-26 to 1999-07-07; source msha-controller-operator-history
- **controller_controls_mine:** Robert M  Thompson → WOODWORTH PIT; 1985-09-26 to 1999-07-07; source msha-controller-operator-history
- **controller_controls_operator:** Robert M  Thompson → Woodland Paving Company; 1985-09-26 to 1999-07-07; source msha-controller-operator-history
- **operator_operates_mine:** Woodland Paving Company → WOODWORTH PIT; 1999-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → WOODWORTH PIT; 1999-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Woodland Paving Company; 1999-07-08 to current/open; source msha-controller-operator-history