The presidential successor of Dwight D. Eisenhower was John Fitzgerald Kennedy, who became the 35th president of the United States in 1961. Dwight Eisenhower played an important role in the military history of the United States as a five-star general. He died in 1969.
John F. Kennedy was the youngest person to become a U.S president and also the youngest U.S president to die while still in power. He played important roles in civil rights legislation, slowing the arms race and stopping the spread of nuclear weapons. John F. Kennedy was assassinated on Nov. 22, 1963, while his motorcade was passing through Dallas, Texas.