# Relationship history for MSHA mine 2103692

Current hierarchy: **Gary  Veenstra; Travis  Veenstra → Veenstra & Son LLC → Veenstra & Son LLC**

- 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:** Veenstra & Son LLC → Veenstra & Son LLC; 2010-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Travis  Veenstra et al → Veenstra & Son LLC; 2010-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Travis  Veenstra et al → Veenstra & Son LLC; 2010-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Veenstra et al → Veenstra & Son LLC; 2010-09-15 to current/open; source msha-controller-operator-history