# Relationship history for MSHA mine 0901110

Current hierarchy: **Charles Howard  Starr → Martus Stone Georgia LLC → Glade 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:** Leon Saxon Granite Company Inc → Glade Quarry; 1998-01-09 to 2026-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Leon  Saxon → Glade Quarry; 1998-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leon  Saxon → Leon Saxon Granite Company Inc; 1998-01-09 to 2026-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Charles Howard  Starr → Glade Quarry; 2023-05-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Martus Stone Georgia LLC → Glade Quarry; 2026-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles Howard  Starr → Martus Stone Georgia LLC; 2026-08-17 to current/open; source msha-controller-operator-history