to die was Beau Biden, the eldest son of Joe Biden, who died on May 30, 2015, at the age of 46, before his father became president. The most recent presidential child to die who lived during their father's presidency was John Eisenhower, the only surviving son of Dwight D. Eisenhower, who died on December 21, 2013, at the age of 91. He was also the father-in-law of Julie Nixon Eisenhower, another presidential child. See also List of children of vice presidents of the United States Notes References Sources Bonnie Angelo, First Families: The Impact of the White House on Their Lives, William A. Degregorio, The Complete Book of U.S. Presidents, Wings Books, 1991 Doug Wead, All the President's Children: Triumph and Tragedy in the Lives of America's First Families, Atria Books, New York, 2003, Further reading Larry D. Underwood. All the President's Children, Dageford Publishing, 2002, (a children's book) Quinn-Musgrove, Sandra L. and Kanter, Sanford, America's Royalty: All the President's Children, Olympic Marketing, Children of presidents Presidents of the United States Children by occupation of parent