# Relationship history for MSHA mine 4202706

Current hierarchy: **James W  Taylor → Double J Sand & Gravel, Inc. → Hacking/Pelican**

- 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:** Double J Sand & Gravel, Inc. → Hacking/Pelican; 2020-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James W  Taylor → Hacking/Pelican; 2020-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James W  Taylor → Double J Sand & Gravel, Inc.; 2020-04-24 to current/open; source msha-controller-operator-history