Joseph P. Kennedy and the sons he groomed to become America's Political Dynasty, poses at the family home in Hyannis, Mass. in 1935 with his sons (clockwise from left) Edward, John, Joseph Jr., and Robert. Three of the boys would rise to the top; three would die tragically.

Joseph P. Kennedy and the sons he groomed to become America's Political Dynasty, poses at the family home in Hyannis, Mass. in 1935 with his sons (clockwise from left) Edward, John, Joseph Jr., and Robert. Three of the boys would rise to the top; three would die tragically.