# Relationship history for MSHA mine 1102394

Current hierarchy: **Robert A  Egert; Gary L  Egert → Renner'S Quarry → Sheely Quarry**

- 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:** Renner'S Quarry → Sheely Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert A  Egert et al → Sheely Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert A  Egert et al → Renner'S Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary L  Egert et al → Renner'S Quarry; 1950-01-01 to current/open; source msha-controller-operator-history