# Relationship history for MSHA mine 1508046

Current hierarchy: **Robert E  Murray → Andalex Resources Inc → Don Bow 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

- **controller_controls_mine:** Andalex Resources B V → Don Bow Mine; 1950-01-01 to 2006-08-08; source msha-controller-operator-history
- **operator_operates_mine:** Don Bow Mining Company Inc → Don Bow Mine; 1975-02-01 to 1978-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Donald E  Bowles → Don Bow Mine; 1975-02-01 to 1978-05-16; source msha-controller-operator-history
- **controller_controls_operator:** Donald E  Bowles → Don Bow Mining Company Inc; 1975-02-01 to 1978-05-16; source msha-controller-operator-history
- **operator_operates_mine:** Andalex Resources Inc → Don Bow Mine; 1978-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andalex Resources B V → Andalex Resources Inc; 1978-05-17 to 2006-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Don Bow Mine; 2006-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Andalex Resources Inc; 2006-08-09 to current/open; source msha-controller-operator-history