# Relationship history for MSHA mine 3608803

Current hierarchy: **Scott B Haines; John R Kibblehouse Jr; Harry Christian Budenz; James  Ha → H&K Group, Inc. → Birdsboro 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** John R  Kibblehouse et al → Birdsboro Quarry; 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **operator_operates_mine:** H&K Group, Inc. → Birdsboro Quarry; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John R  Kibblehouse et al → H&K Group, Inc.; 1999-08-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John B  Haines IV et al → H&K Group, Inc.; 1999-08-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_mine:** John R Kibblehouse Jr et al → Birdsboro Quarry; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John R Kibblehouse Jr et al → H&K Group, Inc.; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Haines et al → H&K Group, Inc.; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry Christian Budenz et al → H&K Group, Inc.; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott B Haines et al → H&K Group, Inc.; 2023-01-25 to current/open; source msha-controller-operator-history