# Relationship history for MSHA mine 4406404

Current hierarchy: **Royall E  Fariss → Finly Corp → DREDGE #1**

- 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

- **controller_controls_mine:** Michael W  Hensley → DREDGE #1; 1985-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jmj Sand & Hauling → DREDGE #1; 1987-08-01 to 1996-06-02; source msha-controller-operator-history
- **controller_controls_operator:** Michael W  Hensley → Jmj Sand & Hauling; 1987-08-01 to 1996-06-02; source msha-controller-operator-history
- **operator_operates_mine:** Finly Corp → DREDGE #1; 1996-06-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Royall E  Fariss → DREDGE #1; 1996-06-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Royall E  Fariss → Finly Corp; 1996-06-03 to current/open; source msha-controller-operator-history