# Relationship history for MSHA mine 2301967

Current hierarchy: **Michael K Farmer; Elliott (Bud) E Farmer → Capital Materials, LLC → Linn Creek 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

- **operator_operates_mine:** Chesapeake Quarry → Linn Creek Quarry; 1987-01-01 to 1988-07-31; source msha-controller-operator-history
- **controller_controls_mine:** James Don  Rogers → Linn Creek Quarry; 1987-01-01 to 1988-07-31; source msha-controller-operator-history
- **controller_controls_operator:** James Don  Rogers → Chesapeake Quarry; 1987-01-01 to 1988-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Roach Quarry → Linn Creek Quarry; 1988-08-01 to 1995-03-08; source msha-controller-operator-history
- **controller_controls_mine:** H E  Roach → Linn Creek Quarry; 1988-08-01 to 1995-03-08; source msha-controller-operator-history
- **controller_controls_operator:** H E  Roach → Roach Quarry; 1988-08-01 to 1995-03-08; source msha-controller-operator-history
- **controller_controls_mine:** William D  Eckhoff et al → Linn Creek Quarry; 1994-07-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southwest Lime Quarry Inc → Linn Creek Quarry; 1995-03-09 to 1998-02-02; source msha-controller-operator-history
- **controller_controls_operator:** William D  Eckhoff et al → Southwest Lime Quarry Inc; 1995-03-09 to 1998-02-02; source msha-controller-operator-history
- **operator_operates_mine:** Apac-Missouri, Inc → Linn Creek Quarry; 1998-02-03 to 2016-05-11; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc → Linn Creek Quarry; 1998-02-03 to 2006-08-27; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc → Apac-Missouri, Inc; 1998-02-03 to 2006-08-27; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Linn Creek Quarry; 2006-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Apac-Missouri, Inc; 2006-08-28 to 2016-05-11; source msha-controller-operator-history
- **operator_operates_mine:** Capital Materials, LLC → Linn Creek Quarry; 2016-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Elliott (Bud) E Farmer  et al → Linn Creek Quarry; 2016-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliott (Bud) E Farmer  et al → Capital Materials, LLC; 2016-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael K Farmer  et al → Capital Materials, LLC; 2016-05-12 to current/open; source msha-controller-operator-history