# Relationship history for MSHA mine 4801445

Current hierarchy: **Young Lisa & George → G & L Concrete Inc → G&L CONCRETE INC.**

- 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:** Willis  Young et al → G&L CONCRETE INC.; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Willis Young Cement & Gravel Company → G&L CONCRETE INC.; 1985-11-01 to 1994-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Willis  Young et al → Willis Young Cement & Gravel Company; 1985-11-01 to 1994-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Irene  Young et al → Willis Young Cement & Gravel Company; 1985-11-01 to 1994-05-01; source msha-controller-operator-history
- **operator_operates_mine:** G & L Concrete Inc → G&L CONCRETE INC.; 1994-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Young Lisa & George → G&L CONCRETE INC.; 1994-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Young Lisa & George → G & L Concrete Inc; 1994-05-02 to current/open; source msha-controller-operator-history