# Relationship history for MSHA mine 0301765

Current hierarchy: **William  Schwartz → Franklin Stone Inc → Franklin Stone Inc**

- 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:** Gaylon Bennett → Franklin Stone Inc; 1995-08-01 to 2005-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Gaylon  Bennett → Franklin Stone Inc; 1995-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gaylon  Bennett → Gaylon Bennett; 1995-08-01 to 2005-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Franklin Stone Inc → Franklin Stone Inc; 2005-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William  Schwartz → Franklin Stone Inc; 2005-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William  Schwartz → Franklin Stone Inc; 2005-10-18 to current/open; source msha-controller-operator-history