An Album of Presidents and Their Children

Richard M. Nixon
Julie, left, and Tricia present their father with a mini surfboard on the lawn of the White House in 1969. The elder Julie married John Eisenhower, grandson of the 34th President in 1968, and pursued a career as a writer. Tricia's marriage to Ed Cox was the last wedding to take place on White House grounds. She has remained out of the public eye since her father resigned the presidency.

• Photos: Presidents at the Beach
• Barack Obama's Family Tree