# Relationship history for MSHA mine 3610378

Current hierarchy: **Richard C Bowman III; Robert K Bowman; Richard C Bowman, Jr → R.C. Bowman, Inc. → Snooks Road Quarry**

- 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:** R.C. Bowman, Inc. → Snooks Road Quarry; 2022-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert K Bowman et al → Snooks Road Quarry; 2022-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert K Bowman et al → R.C. Bowman, Inc.; 2022-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard C Bowman III et al → R.C. Bowman, Inc.; 2022-02-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard C Bowman, Jr et al → R.C. Bowman, Inc.; 2022-02-25 to current/open; source msha-controller-operator-history