# Relationship history for MSHA mine 0103509

Current hierarchy: **Judith  Cumbie → Cumbie Inc. → Vickers**

- 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:** Eric L  Cumbie → Vickers; 2010-01-19 to 2014-07-23; source msha-controller-operator-history
- **controller_controls_mine:** Judith  Cumbie → Vickers; 2014-07-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cumbie Inc. → Vickers; 2017-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric L  Cumbie → Cumbie Inc.; 2017-05-23 to 2014-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Judith  Cumbie → Cumbie Inc.; 2017-05-23 to current/open; source msha-controller-operator-history