# Relationship history for MSHA mine 1102947

Current hierarchy: **Tim J Benesh; Anthony  Benesh → Steve Benesh & Sons Quarry → Steve Benesh & Sons 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

- **operator_operates_mine:** Steve Benesh & Sons Quarry → Steve Benesh & Sons Quarry; 1993-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tim J Benesh  et al → Steve Benesh & Sons Quarry; 1993-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim J Benesh  et al → Steve Benesh & Sons Quarry; 1993-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Benesh  et al → Steve Benesh & Sons Quarry; 1993-09-01 to current/open; source msha-controller-operator-history