# Relationship history for MSHA mine 3607556

Current hierarchy: **Miller David C → Home Sweet Home Coal Company → Home Sweet Home Coal Co**

- 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:** Home Sweet Home Coal Company → Home Sweet Home Coal Co; 1984-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Miller David C → Home Sweet Home Coal Co; 1984-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Miller David C → Home Sweet Home Coal Company; 1984-03-01 to current/open; source msha-controller-operator-history