# Relationship history for MSHA mine 2000887

Current hierarchy: **Brown Jesse → B & J Aggregates → Austin Western Plant #1**

- 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:** Williams Brothers Asphalt Paving Company Inc → Austin Western Plant #1; 1950-01-01 to 1984-10-10; source msha-controller-operator-history
- **controller_controls_mine:** Williams Colin D → Austin Western Plant #1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Williams Colin D → Williams Brothers Asphalt Paving Company Inc; 1950-01-01 to 1984-10-10; source msha-controller-operator-history
- **operator_operates_mine:** Midwest Aggregates Inc → Austin Western Plant #1; 1984-10-11 to 1987-06-02; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Sanders → Austin Western Plant #1; 1984-10-11 to 1987-06-02; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Sanders → Midwest Aggregates Inc; 1984-10-11 to 1987-06-02; source msha-controller-operator-history
- **operator_operates_mine:** B & J Aggregates → Austin Western Plant #1; 1987-06-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brown Jesse → Austin Western Plant #1; 1987-06-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brown Jesse → B & J Aggregates; 1987-06-03 to current/open; source msha-controller-operator-history