# Relationship history for MSHA mine 3605616

Current hierarchy: **Scott B Haines; John R Kibblehouse Jr; Harry Christian Budenz; James  Ha → H&K Group, Inc. → Silver Hill 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:** Rufus Nolt → Silver Hill Quarry; 1950-01-01 to 1982-11-22; source msha-controller-operator-history
- **controller_controls_mine:** Nolt Rufus → Silver Hill Quarry; 1950-01-01 to 1982-11-22; source msha-controller-operator-history
- **controller_controls_operator:** Nolt Rufus → Rufus Nolt; 1950-01-01 to 1982-11-22; source msha-controller-operator-history
- **operator_operates_mine:** Silver Hill Quarries Inc → Silver Hill Quarry; 1982-11-23 to 1986-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Buch → Silver Hill Quarry; 1982-11-23 to 1986-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Buch → Silver Hill Quarries Inc; 1982-11-23 to 1986-08-31; source msha-controller-operator-history
- **operator_operates_mine:** H&K Group, Inc. → Silver Hill Quarry; 1986-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John R  Kibblehouse et al → Silver Hill Quarry; 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John R  Kibblehouse et al → H&K Group, Inc.; 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John B  Haines IV et al → H&K Group, Inc.; 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_mine:** Scott B Haines et al → Silver Hill Quarry; 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
- **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:** James  Haines et al → H&K Group, Inc.; 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