# Relationship history for MSHA mine 4609113

Current hierarchy: **Thomas D  Little Jr → Little Seam Mining Co. → Newhall Surface Mine**

- 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:** Thomas D  Little Jr → Newhall Surface Mine; 2009-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Seam Mining Co. → Newhall Surface Mine; 2009-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas D  Little Jr → Little Seam Mining Co.; 2009-12-15 to current/open; source msha-controller-operator-history