# Relationship history for MSHA mine 1001391

Current hierarchy: **Harris Loyd & Donald K Despain → Paychute Enterprises Trust → Silver Bar Mine**

- 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:** T R Booth Mining → Silver Bar Mine; 1979-01-01 to 1985-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Booth T R → Silver Bar Mine; 1979-01-01 to 1985-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Booth T R → T R Booth Mining; 1979-01-01 to 1985-10-15; source msha-controller-operator-history
- **operator_operates_mine:** Paychute Enterprises Trust → Silver Bar Mine; 1985-10-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Harris Loyd & Donald K Despain → Silver Bar Mine; 1985-10-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harris Loyd & Donald K Despain → Paychute Enterprises Trust; 1985-10-16 to current/open; source msha-controller-operator-history