# Relationship history for MSHA mine 2200744

Current hierarchy: **A L  Williams Jr → A. L. Williams Jr., Inc. → Lake Annie 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** A. L. Williams Jr., Inc. → Lake Annie Pit; 2002-06-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** A L  Williams Jr → Lake Annie Pit; 2002-06-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** A L  Williams Jr → A. L. Williams Jr., Inc.; 2002-06-25 to current/open; source msha-controller-operator-history