# Relationship history for MSHA mine 4003153

Current hierarchy: **Jeremy L Thomas → Dunlap Stone Inc → Dunlap Stone Sand Plant**

- 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:** James W  Thomas III → Dunlap Stone Sand Plant; 1950-01-01 to 2020-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Dunlap Stone Inc → Dunlap Stone Sand Plant; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James W  Thomas III → Dunlap Stone Inc; 1999-12-01 to 2020-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Jeremy L Thomas → Dunlap Stone Sand Plant; 2020-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy L Thomas → Dunlap Stone Inc; 2020-11-01 to current/open; source msha-controller-operator-history