# Relationship history for MSHA mine 1700797

Current hierarchy: **John D Raymond Jr.; William T Rayfield → Haley's Inc → Sangerville Pit and Mill**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Jan H  Carter → Sangerville Pit and Mill; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Haley Construction Inc → Sangerville Pit and Mill; 2006-04-27 to 2020-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Jan H  Carter → Haley Construction Inc; 2006-04-27 to 2020-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Haley's Inc → Sangerville Pit and Mill; 2020-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William T Rayfield et al → Sangerville Pit and Mill; 2020-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William T Rayfield et al → Haley's Inc; 2020-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John D Raymond Jr. et al → Haley's Inc; 2020-04-01 to current/open; source msha-controller-operator-history