# Relationship history for MSHA mine 0405495

Current hierarchy: **Clara  Goodwin; Paul  Goodwin → Custom Crushing Industries Inc → Portable #1 Big Plant**

- 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:** Custom Crushing Industries Llc → Portable #1 Big Plant; 2001-08-01 to 2009-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Perry  Thompson  et al → Portable #1 Big Plant; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Perry  Thompson  et al → Custom Crushing Industries Llc; 2001-08-01 to 2009-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Bob  Thompson  et al → Custom Crushing Industries Llc; 2001-08-01 to 2009-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Custom Crushing Industries Inc → Portable #1 Big Plant; 2009-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Goodwin et al → Portable #1 Big Plant; 2009-09-28 to 2011-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Goodwin et al → Custom Crushing Industries Inc; 2009-09-28 to 2011-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Perry  Thompson et al → Custom Crushing Industries Inc; 2009-09-28 to 2011-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Clara  Goodwin et al → Portable #1 Big Plant; 2011-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clara  Goodwin et al → Custom Crushing Industries Inc; 2011-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Goodwin et al → Custom Crushing Industries Inc; 2011-07-01 to current/open; source msha-controller-operator-history