# Relationship history for MSHA mine 0302026

Current hierarchy: **Michael K Farmer; Elliott (Bud) E Farmer → Capital Sand Company, Inc. → Batesville Plant #15**

- 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:** Michael K Farmer  et al → Batesville Plant #15; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Preston  Grace → Batesville Plant #15; 2000-07-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Galloway Sand & Gravel Co. Inc. → Batesville Plant #15; 2012-01-27 to 2025-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Preston  Grace → Galloway Sand & Gravel Co. Inc.; 2012-01-27 to 2025-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Capital Sand Company, Inc. → Batesville Plant #15; 2025-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael K Farmer  et al → Capital Sand Company, Inc.; 2025-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliott (Bud) E Farmer  et al → Capital Sand Company, Inc.; 2025-04-15 to current/open; source msha-controller-operator-history