# Relationship history for MSHA mine 5400159

Current hierarchy: **Melba  Figueroa; Edgar  Figueroa → Canarico Quarries Inc → Canarico Quarries**

- 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:** Canarico Quarries Inc → Canarico Quarries; 1950-01-01 to 1996-01-30; source msha-controller-operator-history
- **controller_controls_mine:** Stan  Raich  et al → Canarico Quarries; 1950-01-01 to 1996-01-30; source msha-controller-operator-history
- **controller_controls_operator:** Stan  Raich  et al → Canarico Quarries Inc; 1950-01-01 to 1996-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Canarico Quarries Inc → Canarico Quarries; 1996-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edgar  Figueroa et al → Canarico Quarries; 1996-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edgar  Figueroa et al → Canarico Quarries Inc; 1996-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melba  Figueroa et al → Canarico Quarries Inc; 1996-01-31 to current/open; source msha-controller-operator-history