# Relationship history for MSHA mine 3901634

Current hierarchy: **Patrick  Hoesing; Gayle  Becker; Frank  Hochstein → 13 Crushing → Cap Gravel**

- 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:** 13 Crushing → Cap Gravel; 2018-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Hochstein et al → Cap Gravel; 2018-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Hochstein et al → 13 Crushing; 2018-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gayle  Becker et al → 13 Crushing; 2018-09-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick  Hoesing et al → 13 Crushing; 2018-09-05 to current/open; source msha-controller-operator-history