# Relationship history for MSHA mine 1516747

Current hierarchy: **Winters Ken → Lindsey Taylor Corp → Lindsey Taylor No 1**

- 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:** Lindsey Taylor Corp → Lindsey Taylor No 1; 1989-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Winters Ken → Lindsey Taylor No 1; 1989-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Winters Ken → Lindsey Taylor Corp; 1989-10-01 to current/open; source msha-controller-operator-history