# Relationship history for MSHA mine 2301325

Current hierarchy: **Michael K Farmer; Elliott (Bud) E Farmer → Capital Quarries Co. → Cuba 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:** Eric S  Strope et al → Cuba Quarry; 1950-01-01 to 2011-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Crawford Lime & Material Inc → Cuba Quarry; 1950-01-01 to 2022-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Vernon (Joseph)  Voss et al → Cuba Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vernon (Joseph)  Voss et al → Crawford Lime & Material Inc; 1950-01-01 to 2022-07-01; source msha-controller-operator-history
- **controller_controls_mine:** Michael K Farmer  et al → Cuba Quarry; 2011-04-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Capital Quarries Co. → Cuba Quarry; 2022-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric S  Strope et al → Capital Quarries Co.; 2022-07-02 to 2011-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Michael K Farmer  et al → Capital Quarries Co.; 2022-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliott (Bud) E Farmer  et al → Capital Quarries Co.; 2022-07-02 to current/open; source msha-controller-operator-history