# Relationship history for MSHA mine 4003001

Current hierarchy: **Vulcan Materials Company → Vulcan Construction Materials, LLC → Shelbyville 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Shelbyville Quarry; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Vannatta Group Inc → Shelbyville Quarry; 1989-01-01 to 1990-07-04; source msha-controller-operator-history
- **controller_controls_mine:** Ron C  Vanatta → Shelbyville Quarry; 1989-01-01 to 1990-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Ron C  Vanatta → Vannatta Group Inc; 1989-01-01 to 1990-07-04; source msha-controller-operator-history
- **operator_operates_mine:** Kerr Brothers Crushed Stone → Shelbyville Quarry; 1990-07-05 to 1991-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Jerry F  Kerr → Shelbyville Quarry; 1990-07-05 to 1991-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Jerry F  Kerr → Kerr Brothers Crushed Stone; 1990-07-05 to 1991-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Custom Stone Crushing → Shelbyville Quarry; 1991-04-01 to 1995-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Grady M  Reavis → Shelbyville Quarry; 1991-04-01 to 1995-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Grady M  Reavis → Custom Stone Crushing; 1991-04-01 to 1995-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Custom Stone Llc → Shelbyville Quarry; 1996-01-01 to 2001-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Norma  Wright  et al → Shelbyville Quarry; 1996-01-01 to 2001-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Norma  Wright  et al → Custom Stone Llc; 1996-01-01 to 2001-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Vulcan Construction Materials, LLC → Shelbyville Quarry; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LLC; 2001-02-01 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → Shelbyville Quarry; 2007-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Vulcan Construction Materials, LLC; 2007-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thomas Perry  Wright → Shelbyville Quarry; 2023-03-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas Perry  Wright → Custom Stone Llc; 2023-03-30 to 2001-01-31; source msha-controller-operator-history