# Relationship history for MSHA mine 4003169

Current hierarchy: **James M Flynn → Crab Orchard Stone Co.,  Inc. → Crab Orchard Stone Co., Inc.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** James M Flynn → Crab Orchard Stone Co., Inc.; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Crab Orchard Stone Co.,  Inc. → Crab Orchard Stone Co., Inc.; 2001-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James M Flynn → Crab Orchard Stone Co.,  Inc.; 2001-05-01 to current/open; source msha-controller-operator-history