Anne Wojcicki, the wife of Google cofounder Sergey Brin and CEO of the Google-funded biotech startup 23andMe, is a modern sort, keeping her name after marriage. Not so, apparently, for the former Lucy Southworth, who recently married Brin's cofounder, Larry Page. At the World Economic Forum in Davos, her nametag read "Lucy Page." One thing's for sure: This will make her more difficult to Google.

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