Kellen is an associate professor of law at Columbia Law School, where he teaches federal litigation and American legal history. He and his wife, Anna Beth, have attended Stone Hill/Westerly since 2011, when Kellen began his Ph.D. studies in American history at Princeton University. They have three children: Nellie, Kory, and Augie. Both Kellen and Anna Beth grew up in Christian homes and believed and obeyed the gospel from early childhood. They are seeking in turn to raise their children in the faith and to proclaim Christ’s kingdom in Princeton, at Columbia, and around the world.