# Relationship history for MSHA mine 2700537

Current hierarchy: **Charles W St Pierre; Albert A St Pierre; Jeremy  St Pierre → St Pierre Inc → Cheshire 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

- **controller_controls_mine:** Charles W  St Pierre et al → Cheshire Quarry; 1950-01-01 to 2022-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Charles W St Pierre et al → Cheshire Quarry; 2022-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** St Pierre Inc → Cheshire Quarry; 2023-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles W St Pierre et al → St Pierre Inc; 2023-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy  St Pierre et al → St Pierre Inc; 2023-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert A St Pierre et al → St Pierre Inc; 2023-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles W  St Pierre et al → St Pierre Inc; 2023-03-07 to 2022-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Dominic T  St Pierre et al → St Pierre Inc; 2023-03-07 to 2022-01-31; source msha-controller-operator-history