# Relationship history for MSHA mine 1102047

Current hierarchy: **Robert P  Downen; Edward W  Downen → Jader Fuel Company Inc → Jader No 2 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

- **controller_controls_mine:** Robert P  Downen et al → Jader No 2 Strip; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Houston Coal Co → Jader No 2 Strip; 1973-01-01 to 1975-10-05; source msha-controller-operator-history
- **controller_controls_mine:** Houston Robert L & Charles H → Jader No 2 Strip; 1973-01-01 to 1975-10-05; source msha-controller-operator-history
- **controller_controls_operator:** Houston Robert L & Charles H → Houston Coal Co; 1973-01-01 to 1975-10-05; source msha-controller-operator-history
- **operator_operates_mine:** Jader Fuel Company Inc → Jader No 2 Strip; 1975-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert P  Downen et al → Jader Fuel Company Inc; 1975-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward W  Downen et al → Jader Fuel Company Inc; 1975-10-06 to current/open; source msha-controller-operator-history