# Relationship history for MSHA mine 1519393

Current hierarchy: **Jeffery Dean  Bowman → Bowman-Cook Construction Co., Inc. → Cane Branch Elkhorn #2**

- 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:** Jeffery Dean  Bowman → Cane Branch Elkhorn #2; 2007-03-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bowman-Cook Construction Co., Inc. → Cane Branch Elkhorn #2; 2009-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery Dean  Bowman → Bowman-Cook Construction Co., Inc.; 2009-03-12 to current/open; source msha-controller-operator-history