Upon googling Laura Eisenhower: https://www.google.com/search?q=Laura+Magdalene+Eisenhower&ie=utf-8&oe=utf-8
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That tree shows that Ike's son John has a daughter Susan, who's apparently Laura Eisenhower’s mother.
Upon googling Laura Eisenhower: https://www.google.com/search?q=Laura+Magdalene+Eisenhower&ie=utf-8&oe=utf-8
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