# Relationship history for MSHA mine 0405775

Current hierarchy: **Jerry S  Hanley → J Hanley Construction Inc → Portable Screen Plant #1**

- 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:** J Hanley Construction Corporation → Portable Screen Plant #1; 2009-01-28 to 2010-05-14; source msha-controller-operator-history
- **controller_controls_mine:** Jerry S  Hanley → Portable Screen Plant #1; 2009-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry S  Hanley → J Hanley Construction Corporation; 2009-01-28 to 2010-05-14; source msha-controller-operator-history
- **operator_operates_mine:** J Hanley Construction Inc → Portable Screen Plant #1; 2010-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry S  Hanley → Portable Screen Plant #1; 2010-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry S  Hanley → J Hanley Construction Inc; 2010-05-15 to current/open; source msha-controller-operator-history