# Relationship history for MSHA mine 1502616

Current hierarchy: **Coleman Gary D → Star Dust Coal Company → No 25 Mine**

- 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:** Harvey Hodge Coal Company → No 25 Mine; 1950-01-01 to 1971-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Hodge Harvey → No 25 Mine; 1950-01-01 to 1971-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Hodge Harvey → Harvey Hodge Coal Company; 1950-01-01 to 1971-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Star Dust Coal Company → No 25 Mine; 1972-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Coleman Gary D → No 25 Mine; 1972-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Gary D → Star Dust Coal Company; 1972-01-01 to current/open; source msha-controller-operator-history