# Relationship history for MSHA mine 4200489

Current hierarchy: **Guire Jimmy R & Juan A Olivas → G & O Mining Company → Louise 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

- **operator_operates_mine:** Anderson Brothers Mining & Drilling → Louise Mine; 1950-01-01 to 1980-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Anderson Brothers Mining & Drilling → Louise Mine; 1950-01-01 to 1980-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Anderson Brothers Mining & Drilling → Anderson Brothers Mining & Drilling; 1950-01-01 to 1980-01-31; source msha-controller-operator-history
- **operator_operates_mine:** G & O Mining Company → Louise Mine; 1980-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Guire Jimmy R & Juan A Olivas → Louise Mine; 1980-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Guire Jimmy R & Juan A Olivas → G & O Mining Company; 1980-02-01 to current/open; source msha-controller-operator-history