# Relationship history for MSHA mine 1519172

Current hierarchy: **Ron D  Bowling → Joshua Enterprises, Inc. → Torchlight #1 S/N 92**

- 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:** Ron D  Bowling → Torchlight #1 S/N 92; 2005-01-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Joshua Enterprises, Inc. → Torchlight #1 S/N 92; 2008-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron D  Bowling → Joshua Enterprises, Inc.; 2008-01-07 to current/open; source msha-controller-operator-history