# Relationship history for MSHA mine 4605856

Current hierarchy: **Voyager Enterprises Pty Ltd → Voyager Coal Company → Peter Wright**

- 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:** Kanawha Dredging & Minerals Company Ltd → Peter Wright; 1978-01-01 to 1990-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Dalby Kevin W → Peter Wright; 1978-01-01 to 1990-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Dalby Kevin W → Kanawha Dredging & Minerals Company Ltd; 1978-01-01 to 1990-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Voyager Coal Company → Peter Wright; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Voyager Enterprises Pty Ltd → Peter Wright; 1990-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Voyager Enterprises Pty Ltd → Voyager Coal Company; 1990-07-01 to current/open; source msha-controller-operator-history