# Relationship history for MSHA mine 3609055

Current hierarchy: **Anthony J  Julian; Stanley M  Sears → Mather Recovery Systems, LLC → Crucible 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:** Stanley M  Sears et al → Crucible Mine; 1999-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mather Recovery Systems, LLC → Crucible Mine; 2001-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stanley M  Sears et al → Mather Recovery Systems, LLC; 2001-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony J  Julian et al → Mather Recovery Systems, LLC; 2001-12-04 to current/open; source msha-controller-operator-history