# Relationship history for MSHA mine 4103153

Current hierarchy: **Leon C  Harris → Freddie E. Harris, Inc. → Star Pit & 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

- **controller_controls_mine:** Leon C  Harris et al → Star Pit & Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Star Sand Company Inc → Star Pit & Plant; 1983-02-01 to 2006-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Leon C  Harris et al → Star Sand Company Inc; 1983-02-01 to 2006-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Freddie E. Harris, Inc. → Star Pit & Plant; 2006-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Leon C  Harris et al → Star Pit & Plant; 2006-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leon C  Harris et al → Freddie E. Harris, Inc.; 2006-01-25 to current/open; source msha-controller-operator-history