# Relationship history for MSHA mine 2402626

Current hierarchy: **Gerald W  Fenger → Gerald Fenger/Rock & Dirt Const → Aden Ward**

- 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:** Gerald Fenger/Rock & Dirt Const → Aden Ward; 2012-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gerald W  Fenger → Aden Ward; 2012-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald W  Fenger → Gerald Fenger/Rock & Dirt Const; 2012-05-22 to current/open; source msha-controller-operator-history