# Relationship history for MSHA mine 0801219

Current hierarchy: **Cemex S A → Rinker Materials Of Florida, Inc. → DAVENPORT SHOPS**

- 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:** Lemuel Baylis  Carnes III → DAVENPORT SHOPS; 1950-01-01 to 2024-02-25; source msha-controller-operator-history
- **controller_controls_mine:** CSR Ltd → DAVENPORT SHOPS; 1982-10-27 to 2003-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Standard Sand & Silica Company → DAVENPORT SHOPS; 1994-08-01 to 1998-11-01; source msha-controller-operator-history
- **controller_controls_operator:** Lemuel Baylis  Carnes III → Standard Sand & Silica Company; 1994-08-01 to 1998-11-01; source msha-controller-operator-history
- **operator_operates_mine:** Rinker Materials Of Florida, Inc. → DAVENPORT SHOPS; 1998-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CSR Ltd → Rinker Materials Of Florida, Inc.; 1998-11-02 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Rinker Group Ltd → DAVENPORT SHOPS; 2003-04-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Rinker Group Ltd → Rinker Materials Of Florida, Inc.; 2003-04-01 to 2007-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Cemex S A → DAVENPORT SHOPS; 2007-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cemex S A → Rinker Materials Of Florida, Inc.; 2007-07-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Valerie  Carnes → DAVENPORT SHOPS; 2024-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Valerie  Carnes → Standard Sand & Silica Company; 2024-02-26 to 1998-11-01; source msha-controller-operator-history