# Relationship history for MSHA mine 4104259

Current hierarchy: **Jimmy  Hawley → Lindale Sand & Gravel → LINDALE SAND & GRAVEL**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Lindale Sand & Gravel → LINDALE SAND & GRAVEL; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy  Hawley → LINDALE SAND & GRAVEL; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy  Hawley → Lindale Sand & Gravel; 2001-02-01 to current/open; source msha-controller-operator-history