# Relationship history for MSHA mine 4405983

Current hierarchy: **Manning Kenneth Don → Manning Coal Corp → Mine No 3**

- 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:** Manning Kenneth Don → Mine No 3; 1981-01-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Manning Coal Corp → Mine No 3; 1983-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Manning Kenneth Don → Manning Coal Corp; 1983-03-01 to current/open; source msha-controller-operator-history