Who succeeded Harry S. Truman as President of the United States?

Under which president did Harry S. Truman serve as Vice President? Who was First Lady during Franklin D. Roosevelt's presidency? Eleanor Roosevelt was married to which president? Which number president was Harry S. Truman? Who was President immediately before Harry S. Truman? Which political party did President Harry S. Truman belong to? Which president served from 1945 to 1953? In what year did Harry S. Truman first take office as President?