# Relationship history for MSHA mine 3401961

Current hierarchy: **Silver Star Construction Company Inc.; The Cummins Construction Company → FALCON MATERIALS LLC → Henson #2**

- 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:** FALCON MATERIALS LLC → Henson #2; 2005-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Annette D  Henson  et al → Henson #2; 2005-06-21 to 2007-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Annette D  Henson  et al → FALCON MATERIALS LLC; 2005-06-21 to 2007-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Melvin D  Henson  Jr  et al → FALCON MATERIALS LLC; 2005-06-21 to 2007-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Streater Dozer Service Inc. et al → Henson #2; 2007-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Streater Dozer Service Inc. et al → FALCON MATERIALS LLC; 2007-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Silver Star Construction Company Inc. et al → FALCON MATERIALS LLC; 2007-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Cummins Construction Company Inc et al → FALCON MATERIALS LLC; 2007-06-01 to current/open; source msha-controller-operator-history