# Relationship history for MSHA mine 3609803

Current hierarchy: **Jeff  Gunn → Jeff Gunn → Jeff Gunn**

- 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:** Jeff Gunn → Jeff Gunn; 2009-10-22 to 2017-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Gunn → Jeff Gunn; 2009-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Gunn → Jeff Gunn; 2009-10-22 to 2017-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Jeff Gunn → Jeff Gunn; 2017-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Gunn → Jeff Gunn; 2017-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Gunn → Jeff Gunn; 2017-04-03 to current/open; source msha-controller-operator-history