# Relationship history for MSHA mine 4405178

Current hierarchy: **Michael W  McGlothlin → Eastone Dust Corp → Eastone Dust Corporation**

- 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:** Marty Materials Company → Eastone Dust Corporation; 1979-01-01 to 1980-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Marty Corp → Eastone Dust Corporation; 1979-01-01 to 1980-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Marty Corp → Marty Materials Company; 1979-01-01 to 1980-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Eastone Dust Corp → Eastone Dust Corporation; 1980-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael W  McGlothlin → Eastone Dust Corporation; 1980-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael W  McGlothlin → Eastone Dust Corp; 1980-05-05 to current/open; source msha-controller-operator-history