# Relationship history for MSHA mine 0404378

Current hierarchy: **John E  Newman → Texas Hill Mines Company → Nellie Kahoe 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** American Bullion Industries → Nellie Kahoe Mine; 1980-03-01 to 1984-11-05; source msha-controller-operator-history
- **controller_controls_mine:** Michael Charles → Nellie Kahoe Mine; 1980-03-01 to 1984-11-05; source msha-controller-operator-history
- **controller_controls_operator:** Michael Charles → American Bullion Industries; 1980-03-01 to 1984-11-05; source msha-controller-operator-history
- **operator_operates_mine:** World Wide Development → Nellie Kahoe Mine; 1984-11-06 to 1985-12-08; source msha-controller-operator-history
- **controller_controls_mine:** Lee Clarrie → Nellie Kahoe Mine; 1984-11-06 to 1985-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Lee Clarrie → World Wide Development; 1984-11-06 to 1985-12-08; source msha-controller-operator-history
- **operator_operates_mine:** Texas Hill Mines Company → Nellie Kahoe Mine; 1985-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John E  Newman et al → Nellie Kahoe Mine; 1985-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John E  Newman et al → Texas Hill Mines Company; 1985-12-09 to current/open; source msha-controller-operator-history