# Relationship history for MSHA mine 3608740

Current hierarchy: **Richard A  Jenkins → Rich Jenkins Inc. → O'Dell 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:** Bruce F  Taylor Sr → O'Dell Quarry; 1989-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bruce Taylor Sr → O'Dell Quarry; 1998-06-01 to 2005-05-15; source msha-controller-operator-history
- **controller_controls_operator:** Bruce F  Taylor Sr → Bruce Taylor Sr; 1998-06-01 to 2005-05-15; source msha-controller-operator-history
- **controller_controls_mine:** Tammy L  Norton → O'Dell Quarry; 2003-01-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tammy & Norm Norton Stone → O'Dell Quarry; 2005-05-16 to 2006-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Tammy L  Norton → Tammy & Norm Norton Stone; 2005-05-16 to 2006-10-02; source msha-controller-operator-history
- **operator_operates_mine:** P Scott Baldwin → O'Dell Quarry; 2006-10-03 to 2010-04-25; source msha-controller-operator-history
- **controller_controls_mine:** P Scott  Baldwin → O'Dell Quarry; 2006-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** P Scott  Baldwin → P Scott Baldwin; 2006-10-03 to 2010-04-25; source msha-controller-operator-history
- **controller_controls_mine:** Richard A  Jenkins → O'Dell Quarry; 2006-11-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rich Jenkins, Inc. → O'Dell Quarry; 2010-04-26 to 2020-11-21; source msha-controller-operator-history
- **controller_controls_operator:** Richard A  Jenkins → Rich Jenkins, Inc.; 2010-04-26 to 2020-11-21; source msha-controller-operator-history
- **operator_operates_mine:** DH Manufacturing LLC → O'Dell Quarry; 2020-11-22 to 2022-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Devin  Hollenbeck → O'Dell Quarry; 2020-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Devin  Hollenbeck → DH Manufacturing LLC; 2020-11-22 to 2022-05-05; source msha-controller-operator-history
- **operator_operates_mine:** Rich Jenkins Inc. → O'Dell Quarry; 2022-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard A  Jenkins → Rich Jenkins Inc.; 2022-05-06 to current/open; source msha-controller-operator-history