# Relationship history for MSHA mine 0202837

Current hierarchy: **Glen  Betenbough; Katherine  Betenbough → All Star Materials Corp → SOUTH MTN. GRAY GREEN**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** All Star Materials Corp → SOUTH MTN. GRAY GREEN; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Katherine  Betenbough  et al → SOUTH MTN. GRAY GREEN; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Katherine  Betenbough  et al → All Star Materials Corp; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Glen  Betenbough  et al → All Star Materials Corp; 1999-09-01 to current/open; source msha-controller-operator-history