# Relationship history for MSHA mine 4404916

Current hierarchy: **Rife Ralph C → R L & H Coal Company Inc → No 8**

- 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:** Rife Ralph C → No 8; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rash Russell → No 8; 1977-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shiloh Coal Company Inc → No 8; 1977-12-01 to 1978-09-25; source msha-controller-operator-history
- **controller_controls_mine:** Clark Robert → No 8; 1977-12-01 to 1978-09-25; source msha-controller-operator-history
- **controller_controls_operator:** Clark Robert → Shiloh Coal Company Inc; 1977-12-01 to 1978-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Middle Creek Coal Corp → No 8; 1978-09-26 to 1979-09-24; source msha-controller-operator-history
- **controller_controls_operator:** Rash Russell → Middle Creek Coal Corp; 1978-09-26 to 1979-09-24; source msha-controller-operator-history
- **operator_operates_mine:** R L & H Coal Company Inc → No 8; 1979-09-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rife Ralph C → R L & H Coal Company Inc; 1979-09-25 to current/open; source msha-controller-operator-history