# Relationship history for MSHA mine 3609868

Current hierarchy: **Janice  Snyder; H James  Snyder → J & J Snyder Inc. → J & J Strips**

- 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:** J & J Snyder Inc. → J & J Strips; 2010-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** H James  Snyder et al → J & J Strips; 2010-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H James  Snyder et al → J & J Snyder Inc.; 2010-08-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janice  Snyder et al → J & J Snyder Inc.; 2010-08-10 to current/open; source msha-controller-operator-history