# Relationship history for MSHA mine 3502783

Current hierarchy: **Mike  Alltucker; John  Alltucker → Green & White Rock Products Inc → Green & White Pit**

- 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:** Shur-Way Rock Products → Green & White Pit; 1950-01-01 to 1981-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Ansola Max → Green & White Pit; 1950-01-01 to 1981-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Ansola Max → Shur-Way Rock Products; 1950-01-01 to 1981-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Mike  Alltucker et al → Green & White Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Green & White Rock Products Inc → Green & White Pit; 1981-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Alltucker et al → Green & White Rock Products Inc; 1981-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Alltucker et al → Green & White Rock Products Inc; 1981-05-01 to current/open; source msha-controller-operator-history