# Relationship history for MSHA mine 3600122

Current hierarchy: **Scott B Haines; John R Kibblehouse Jr; Harry Christian Budenz; James  Ha → A B E Materials → A B E Materials (Allentown)**

- 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:** Roy J Kern → A B E Materials (Allentown); 1950-01-01 to 1988-02-29; source msha-controller-operator-history
- **controller_controls_mine:** Kern Roy J → A B E Materials (Allentown); 1950-01-01 to 1988-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Kern Roy J → Roy J Kern; 1950-01-01 to 1988-02-29; source msha-controller-operator-history
- **operator_operates_mine:** A B E Materials → A B E Materials (Allentown); 1988-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John B  Haines IV et al → A B E Materials (Allentown); 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John B  Haines IV et al → A B E Materials; 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John R  Kibblehouse et al → A B E Materials; 1988-03-01 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_mine:** Scott B Haines et al → A B E Materials (Allentown); 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott B Haines et al → A B E Materials; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John R Kibblehouse Jr et al → A B E Materials; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Haines et al → A B E Materials; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry Christian Budenz et al → A B E Materials; 2023-01-25 to current/open; source msha-controller-operator-history