# Relationship history for MSHA mine 4703382

Current hierarchy: **Charles E  Jaecks Sr → Mr. Ed's Excavation, Inc. → Power Screen #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Mr. Ed's Excavation, Inc. → Power Screen #1; 2004-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles E  Jaecks Sr → Power Screen #1; 2004-05-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles E  Jaecks Sr → Mr. Ed's Excavation, Inc.; 2004-05-26 to current/open; source msha-controller-operator-history