# Relationship history for MSHA mine 1001050

Current hierarchy: **Jami L Sluder; Chad J Sluder → Sluder Construction → Yankee Fork Pit**

- 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:** Sluder Construction → Yankee Fork Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** M Joan  Sluder  et al → Yankee Fork Pit; 1950-01-01 to 2018-08-07; source msha-controller-operator-history
- **controller_controls_operator:** M Joan  Sluder  et al → Sluder Construction; 1950-01-01 to 2018-08-07; source msha-controller-operator-history
- **controller_controls_mine:** Chad J Sluder et al → Yankee Fork Pit; 2018-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chad J Sluder et al → Sluder Construction; 2018-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jami L Sluder et al → Sluder Construction; 2018-08-08 to current/open; source msha-controller-operator-history