How many presidents were elected during the fifties?

The Fifties, still recovering from World War II but the beginning of an atomic age as well as the Cold War. Our United States Presidents of the 50's era was first Harry S. Truman, a Democrat who previously was Franklin D. Roosevelt's Vice President. Then you have Dwight D. Eisenhower, or as many know "Ike". A former General who led the U.S through extremely tough times.