# Relationship history for MSHA mine 0103537

Current hierarchy: **Valerie  Carnes → Elmore Sand & Gravel → Holt 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Billy R  Stanley → Holt Pit; 1993-07-01 to 2009-03-10; source msha-controller-operator-history
- **controller_controls_mine:** Lemuel Baylis  Carnes III → Holt Pit; 2009-03-11 to 2024-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Elmore Sand & Gravel → Holt Pit; 2019-10-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lemuel Baylis  Carnes III → Elmore Sand & Gravel; 2019-10-08 to 2024-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Billy R  Stanley → Elmore Sand & Gravel; 2019-10-08 to 2009-03-10; source msha-controller-operator-history
- **controller_controls_mine:** Valerie  Carnes → Holt Pit; 2024-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Valerie  Carnes → Elmore Sand & Gravel; 2024-03-27 to current/open; source msha-controller-operator-history