# Relationship history for MSHA mine 3609838

Current hierarchy: **Jesse A  Colwell → Jesse Colwell → Colwell Portable**

- 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:** Jesse Colwell → Colwell Portable; 2010-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jesse A  Colwell → Colwell Portable; 2010-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jesse A  Colwell → Jesse Colwell; 2010-03-16 to current/open; source msha-controller-operator-history