# Relationship history for MSHA mine 3602105

Current hierarchy: **Joseph  Kleeman → Anthracite Coal → Shamokin Prep 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:** R & N Coal Company → Shamokin Prep Plant; 1950-01-01 to 2003-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Elwood  Swank → Shamokin Prep Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elwood  Swank → R & N Coal Company; 1950-01-01 to 2003-10-15; source msha-controller-operator-history
- **operator_operates_mine:** Anthracite Coal → Shamokin Prep Plant; 2003-10-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Kleeman  et al → Shamokin Prep Plant; 2003-10-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Kleeman  et al → Anthracite Coal; 2003-10-16 to current/open; source msha-controller-operator-history