# Relationship history for MSHA mine 3401909

Current hierarchy: **John W  Fowler; Wesley J  Whaley → Fowler Stone → Fowler Stone**

- 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:** Fowler Stone → Fowler Stone; 2003-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John W  Fowler  et al → Fowler Stone; 2003-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John W  Fowler  et al → Fowler Stone; 2003-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wesley J  Whaley  et al → Fowler Stone; 2003-05-22 to current/open; source msha-controller-operator-history