# Relationship history for MSHA mine 4104100

Current hierarchy: **Larry P  Smith → Larry P Smith → LARRY P. SMITH**

- 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:** Larry P Smith → LARRY P. SMITH; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry P  Smith → LARRY P. SMITH; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry P  Smith → Larry P Smith; 1999-08-01 to current/open; source msha-controller-operator-history