# Relationship history for MSHA mine 3608075

Current hierarchy: **D Eugene  Goss → M & S Mining Inc. → Henry 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Smith Andrew → Henry Mine; 1973-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M & S Mining Inc → Henry Mine; 1990-03-01 to 2002-10-07; source msha-controller-operator-history
- **controller_controls_operator:** Smith Andrew → M & S Mining Inc; 1990-03-01 to 2002-10-07; source msha-controller-operator-history
- **operator_operates_mine:** M & S Mining Incorporated → Henry Mine; 2002-10-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** D Eugene  Goss → Henry Mine; 2002-10-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** D Eugene  Goss → M & S Mining Incorporated; 2002-10-08 to current/open; source msha-controller-operator-history