# Relationship history for MSHA mine 1519207

Current hierarchy: **Kenneth F  Smith → Mitco Enterprise, Inc. → Saul Strip**

- 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:** Kenneth F  Smith → Saul Strip; 2006-08-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mitco Enterprise, Inc. → Saul Strip; 2008-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth F  Smith → Mitco Enterprise, Inc.; 2008-04-07 to current/open; source msha-controller-operator-history