# Relationship history for MSHA mine 3606881

Current hierarchy: **James P  Klucik → J & J Mining Company Inc → Toth Strip**

- 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:** J & J Mining Company Inc → Toth Strip; 1979-12-01 to 1980-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Manges John → Toth Strip; 1979-12-01 to 1980-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Manges John → J & J Mining Company Inc; 1979-12-01 to 1980-10-19; source msha-controller-operator-history
- **operator_operates_mine:** J & J Mining Company Inc → Toth Strip; 1980-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James P  Klucik → Toth Strip; 1980-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  Klucik → J & J Mining Company Inc; 1980-10-20 to current/open; source msha-controller-operator-history