# Relationship history for MSHA mine 2300038

Current hierarchy: **Lenny J  Crider → Crider Brothers Lime Company Inc → Crider Brothers Lime 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Crider Brothers Lime Company Inc → Crider Brothers Lime Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Samuel W  Crider  et al → Crider Brothers Lime Quarry; 1950-01-01 to 2026-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Samuel W  Crider  et al → Crider Brothers Lime Company Inc; 1950-01-01 to 2026-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Lenny J  Crider  et al → Crider Brothers Lime Company Inc; 1950-01-01 to 2026-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Lenny J  Crider → Crider Brothers Lime Quarry; 2026-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lenny J  Crider → Crider Brothers Lime Company Inc; 2026-06-12 to current/open; source msha-controller-operator-history