Wikidata Biography Enhancement / Creation

Several existing biography entries on Wikidata need fresh, properly sourced content so they remain accurate and complete over time. The immediate priority is adding new information, specifically:
• Personal details (e.g., verified dates and places of birth, education, family background where publicly documented).

I will supply preliminary references; you will vet them against reliable sources, format the data to Wikidata standards (statements, qualifiers, references), and submit clean edits that stick. After the first round of updates, an ongoing maintenance rhythm is required so future milestones and corrections can be handled quickly without triggering notability or citation flags.

Strong familiarity with Wikidata policies, property usage, and SPARQL is essential because I want each change to integrate seamlessly with existing items and related entities. Please outline your method for sourcing, your typical turnaround for live edits, and any past Wikidata biography work when you apply.