# Relationship history for MSHA mine 0900457

Current hierarchy: **Kurt M  Swenson → Childs & Childs Granite Company Inc → CAPRICE 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:** Peppers Granite Company Inc → CAPRICE QUARRY; 1950-01-01 to 1989-08-24; source msha-controller-operator-history
- **controller_controls_mine:** Kirk  Peppers → CAPRICE QUARRY; 1950-01-01 to 1989-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Kirk  Peppers → Peppers Granite Company Inc; 1950-01-01 to 1989-08-24; source msha-controller-operator-history
- **operator_operates_mine:** Caprice Blue Quarry Inc → CAPRICE QUARRY; 1989-08-25 to 1997-10-31; source msha-controller-operator-history
- **controller_controls_mine:** George T  Oglesby → CAPRICE QUARRY; 1989-08-25 to 1997-10-31; source msha-controller-operator-history
- **controller_controls_operator:** George T  Oglesby → Caprice Blue Quarry Inc; 1989-08-25 to 1997-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Kurt M  Swenson → CAPRICE QUARRY; 1992-01-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Childs & Childs Granite Company Inc → CAPRICE QUARRY; 1997-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kurt M  Swenson → Childs & Childs Granite Company Inc; 1997-11-01 to current/open; source msha-controller-operator-history