# Relationship history for MSHA mine 1600960

Current hierarchy: **Carl  Fornea Jr → Fornea & Sons Trucking Inc → Fornea & Sons Pit #2**

- 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:** S & W Aggregates Inc → Fornea & Sons Pit #2; 1979-10-01 to 1989-09-26; source msha-controller-operator-history
- **controller_controls_mine:** Leslie  Spears et al → Fornea & Sons Pit #2; 1979-10-01 to 1989-09-26; source msha-controller-operator-history
- **controller_controls_operator:** Leslie  Spears et al → S & W Aggregates Inc; 1979-10-01 to 1989-09-26; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Fornea Jr → Fornea & Sons Pit #2; 1987-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fornea & Sons Trucking Inc → Fornea & Sons Pit #2; 1989-09-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Fornea Jr → Fornea & Sons Trucking Inc; 1989-09-27 to current/open; source msha-controller-operator-history