# Relationship history for MSHA mine 4105709

Current hierarchy: **Kathryn  Dunn; Benjamin Blake Dunn → Dunn Services Inc. → Coleman Pit**

- 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

- **operator_operates_mine:** Dunn Services Inc. → Coleman Pit; 2023-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kathryn  Dunn et al → Coleman Pit; 2023-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kathryn  Dunn et al → Dunn Services Inc.; 2023-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin Blake Dunn et al → Dunn Services Inc.; 2023-09-01 to current/open; source msha-controller-operator-history