# Relationship history for MSHA mine 2002906

Current hierarchy: **James G Paquin → Paquin & Sons Inc → UNIVERSAL CRUSHER 1036**

- 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:** James G Paquin → UNIVERSAL CRUSHER 1036; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paquin & Sons Inc → UNIVERSAL CRUSHER 1036; 1993-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James G Paquin → Paquin & Sons Inc; 1993-06-01 to current/open; source msha-controller-operator-history