I have been married since June 15, 1968 to Marlyn McGrath, who is Director of Admissions for Harvard College. We have two daughters, Elizabeth (Head of Sustainable Investing at World Resources Institute in Washington, DC) and Annie (Industry Manager, Politics & Advocacy, at Facebook, in DC). Elizabeth is married to David Fahrenthold (a reporter for the Washington Post). Marlyn and I live in Brookline, Massachusetts, in the house Marlyn grew up in. We also have a place on Swan Lake in northwest Montana, one of the most beautiful spots in the world.