# Relationship history for MSHA mine 4000016

Current hierarchy: **Rogers Group Inc → Rogers Group Inc. → LaFollette 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:** Rogers Group Inc → LaFollette Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Claiborne Construction & Supply Company Inc → LaFollette Quarry; 1950-01-01 to 2003-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Donn S  Claiborne → LaFollette Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn S  Claiborne → Claiborne Construction & Supply Company Inc; 1950-01-01 to 2003-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Tennessee Aggregate Company, LLC → LaFollette Quarry; 2003-12-01 to 2008-07-02; source msha-controller-operator-history
- **controller_controls_mine:** Donna R  Mc Allister  et al → LaFollette Quarry; 2003-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donna R  Mc Allister  et al → Tennessee Aggregate Company, LLC; 2003-12-01 to 2008-07-02; source msha-controller-operator-history
- **controller_controls_operator:** W T  Ratliff Jr  et al → Tennessee Aggregate Company, LLC; 2003-12-01 to 2008-07-02; source msha-controller-operator-history
- **operator_operates_mine:** Rogers Group Inc. → LaFollette Quarry; 2008-07-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rogers Group Inc → Rogers Group Inc.; 2008-07-03 to current/open; source msha-controller-operator-history