# Relationship history for MSHA mine 1519826

Current hierarchy: **Tim B  Lusby → JRL Coal, INC. → Chevrolet Gob**

- 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:** Tim B  Lusby → Chevrolet Gob; 2017-02-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JRL Coal, INC. → Chevrolet Gob; 2018-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim B  Lusby → JRL Coal, INC.; 2018-03-13 to current/open; source msha-controller-operator-history