# Relationship history for MSHA mine 0801050

Current hierarchy: **Joseph D  Bonness III → Better Roads, Inc. → WILLOW RUN QUARRY**

- 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:** Joseph D  Bonness → WILLOW RUN QUARRY; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Highway Pavers Inc → WILLOW RUN QUARRY; 1986-07-01 to 1991-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Joseph D  Bonness → Highway Pavers Inc; 1986-07-01 to 1991-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Southern Sand & Stone Inc → WILLOW RUN QUARRY; 1991-04-01 to 2011-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Joseph D  Bonness III et al → WILLOW RUN QUARRY; 1991-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph D  Bonness III et al → Southern Sand & Stone Inc; 1991-04-01 to 2011-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Better Roads, Inc. → WILLOW RUN QUARRY; 2011-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph D  Bonness III et al → WILLOW RUN QUARRY; 2011-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph D  Bonness III et al → Better Roads, Inc.; 2011-11-01 to current/open; source msha-controller-operator-history