# Relationship history for MSHA mine 4604722

Current hierarchy: **Cline Gordon & Otis G Hawks → C & R Coal Company Inc → No 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

- **operator_operates_mine:** C & R Coal Company → No 1; 1975-06-01 to 1979-04-03; source msha-controller-operator-history
- **controller_controls_mine:** Stumpp James K → No 1; 1975-06-01 to 1979-04-03; source msha-controller-operator-history
- **controller_controls_operator:** Stumpp James K → C & R Coal Company; 1975-06-01 to 1979-04-03; source msha-controller-operator-history
- **operator_operates_mine:** C & R Coal Company Inc → No 1; 1979-04-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cline Gordon & Otis G Hawks → No 1; 1979-04-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cline Gordon & Otis G Hawks → C & R Coal Company Inc; 1979-04-04 to current/open; source msha-controller-operator-history