# Relationship history for MSHA mine 3609659

Current hierarchy: **Marty G  Evans → Marty Evans → Evans Maher 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:** Marty G  Evans → Evans Maher Mine; 2002-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Marty Evans → Evans Maher Mine; 2008-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marty G  Evans → Marty Evans; 2008-08-13 to current/open; source msha-controller-operator-history