Question: how is Harry S. Truman and Franklin D. Roosevelt connected?

full_context: Document 1: Theodore Roosevelt: Theodore Roosevelt Jr. ( ; October 27, 1858 – January 6, 1919) was an American statesman, author, explorer, soldier, naturalist, and reformer who served as the 26th President of the United States from 1901 to 1909. He also served as the 25th Vice President of the United States from March to September 1901 and as the 33rd Governor of New York from 1899 to 1900. As a leader of the Republican Party during this time, he became a driving force for the Progressive Era in the United States in the early 20th century. His face is depicted on Mount Rushmore, alongside those of George Washington, Thomas Jefferson, and Abraham Lincoln.
Document 2: Harry S. Truman Supreme Court candidates: During his two terms in office, President Harry S. Truman appointed four members of the Supreme Court of the United States: Chief Justice Fred M. Vinson, Associate Justice Harold Burton, Associate Justice Tom C. Clark, and Associate Justice Sherman Minton.
Document 3: Fourth inauguration of Franklin D. Roosevelt: The fourth inauguration of Franklin D. Roosevelt as President of the United States was held on Saturday, January 20, 1945. The inauguration marked the commencement of the fourth term of Franklin D. Roosevelt as President and the only term of Harry S. Truman as Vice President. This was the first and only time a president has been inaugurated for a fourth term. (The Twenty-second Amendment to the United States Constitution, ratified in 1951, limits the number of times a person can be elected President to two.) Roosevelt died days into this term, and Truman succeeded to the presidency.
Document 4: Four Policemen: The Four Policemen refers to a post-war council consisting of the Big Four that U.S. President Franklin D. Roosevelt proposed as a guarantor of world peace. The members of the Big Four, called the Four Powers during World War II, were the four major Allies of World War II: the United Kingdom, the United States, the Soviet Union and the Tridemist China. The United Nations envisioned by Roosevelt consisted of three branches: an executive branch comprising the Big Four, an enforcement branch composed of the same four great powers acting as the Four Policemen or Four Sheriffs, and an international assembly representing the member nations of the UN, which united the world's greatest capitalist state, the greatest communist state, the greatest colonial power and the greatest democratic state.
Document 5: Woodrow Wilson: Thomas Woodrow Wilson (December 28, 1856 – February 3, 1924) was an American politician and academic who served as the 28th President of the United States from 1913 to 1921. A member of the Democratic Party, Wilson served as the President of Princeton University from 1902 to 1910 and then ran and was elected as a progressive Democrat to the office of Governor of New Jersey. Wilson's victory in the 1912 presidential election made him the first Southerner elected to the presidency since Zachary Taylor in 1848. He also led the United States during World War I, establishing an activist foreign policy known as "Wilsonianism." He was a major leader at the Paris [Versailles] Peace Conference in 1919, where he championed the proposed League of Nations. However, he was unable to obtain Senate approval for U.S. membership. After he suffered debilitating strokes in September 1919, his wife and staff members handled most of his presidential duties.
Document 6: Harry S. Truman: Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd President of the United States (1945–53), assuming that office upon the death of Franklin D. Roosevelt during the waning months of World War II. He is known for launching the Marshall Plan to rebuild the economy of Western Europe, for leading the Cold War against Soviet and Chinese communism by establishing the Truman Doctrine and NATO, and for intervening in the Korean War. In domestic affairs, he was a moderate Democrat whose liberal proposals were a continuation of Franklin Roosevelt's New Deal, but the conservative-dominated Congress blocked most of them. He used the veto power 180 times, more than any president since then, and saw 12 overridden by Congress; only Grover Cleveland and Franklin D. Roosevelt used the veto so often, and only Gerald Ford and Andrew Johnson saw so many veto overrides. He is also the only world leader to have ever used nuclear weapons in war, desegregated the U.S. Armed Forces, supported a newly independent Israel, and was a founder of the United Nations.
Document 7: Franklin D. Roosevelt: Franklin Delano Roosevelt ( , his own pronunciation, or ; January 30, 1882 – April 12, 1945), commonly known as FDR, was an American statesman and political leader who served as the 32nd President of the United States from 1933 until his death in 1945. A Democrat, he won a record four presidential elections and emerged as a central figure in world events during the mid-20th century. He directed the United States government during most of the Great Depression and World War II. As a dominant leader of his party, he built the New Deal Coalition, realigning American politics into the Fifth Party System and defining American liberalism throughout the middle third of the 20th century. He is often rated by scholars as one of the three greatest U.S. Presidents, along with George Washington and Abraham Lincoln.
Document 8: Mutual Defense Assistance Act: The Mutual Defense Assistance Act was a United States Act of Congress signed by President Harry S. Truman on 6 October 1949. For US Foreign policy, it was the first U.S. military foreign aid legislation of the Cold War era, and initially to Europe. The Act followed Truman's signing of the Economic Cooperation Act (the Marshall Plan), on April 3, 1948, which provided non-military, economic reconstruction and development aid to Europe. The Act was reauthorized in 1950 , but in 1951, it and the Economic Cooperation Act were succeeded by the Mutual Security Act, and its newly created independent agency, the Mutual Security Administration, to supervise all foreign aid programs, including both military assistance programs and non-military, economic assistance programs that bolstered the defense capability of U.S. allies.
Document 9: Herbert Hoover: Herbert Clark Hoover (August 10, 1874October 20, 1964) was an American engineer, businessman, and politician who served as the 31st President of the United States from 1929 to 1933 during the Great Depression. A Republican, as Secretary of Commerce in the 1920s he introduced Progressive Era themes of efficiency in the business community and provided government support for standardization, efficiency and international trade. As president from 1929 to 1933, his ambitious programs were overwhelmed by the Great Depression, which seemed to get worse every year despite the increasingly large-scale interventions he made in the economy. He was defeated in a landslide in 1932 by Democrat Franklin D. Roosevelt, and spent the rest of his life as a conservative denouncing big government, liberalism and federal intervention in economic affairs, as Democrats repeatedly used his Depression record to attack conservatism and justify more regulation of the economy.
Document 10: Dwight D. Eisenhower: Dwight David "Ike" Eisenhower ( ; October 14, 1890 – March 28, 1969) was an American politician and Army general who served as the 34th President of the United States from 1953 until 1961. During World War II, he was a five-star general in the United States Army and served as Supreme Commander of the Allied Expeditionary Forces in Europe. He was responsible for planning and supervising the invasion of North Africa in Operation Torch in 1942–43 and the successful invasion of France and Germany in 1944–45 from the Western Front.
Document 11: Timeline of the presidency of Harry S. Truman: The presidency of Harry S. Truman began on April 12, 1945 when Harry S. Truman became president upon the death of Franklin D. Roosevelt in the last months of World War II, and ended on January 20, 1953.
Document 12: The Roosevelts (film): The Roosevelts: An Intimate History is a 2014 American documentary film directed and produced by Ken Burns. It covers the lives and times of the Roosevelt family, including Theodore Roosevelt, a Republican and the 26th President of the United States; Franklin D. Roosevelt, a Democrat and the 32nd President of the United States, a cousin of Theodore; and Eleanor Roosevelt, the longest-serving First Lady of the United States, a niece of Theodore who had wed Franklin. As a result of the influence of Theodore and Franklin as Presidents, as well as Eleanor as First Lady, a modern democratic state of equal opportunity was begun in the United States. The documentary film begins with the birth of Theodore in 1858 and ends with the death of Eleanor in 1962.
Document 13: Truman Committee: The Truman Committee, formally known as the Senate Special Committee to Investigate the National Defense Program, was a United States Congressional investigative body headed by Senator Harry S. Truman. The bipartisan special committee was formed in March 1941 to find and correct problems in US war production—problems with waste, inefficiency and war profiteering. The Truman Committee proved to be one of the most successful investigative efforts ever mounted by the US government: an initial budget of $15,000 was expanded over three years to $360,000 to save an estimated $10–15 billion in military spending, and thousands of lives of US servicemen. For comparison, the entire cost of the Manhattan Project was $2 billion, at the time. Chairing the committee helped Truman make a name for himself beyond his political machine origins, and was a major factor in the decision to nominate him as vice president, which would propel him to the presidency following the death of Franklin D. Roosevelt.
Document 14: Black Cabinet: The Black Cabinet, or Federal Council of Negro Affairs or Black Brain Trust, was the informal term for a group of African-Americans who served as public policy advisors to President Franklin D. Roosevelt and his wife Eleanor Roosevelt in his 1933-45 terms in office. There was no official organization. The term was coined in 1936 by Mary McLeod Bethune and was occasionally used in the press. By mid-1935, there were 45 African Americans working in federal executive departments and New Deal agencies.
Document 15: NSC-68: National Security Council Report 68 (NSC-68) was a 58-page top secret policy paper by the United States National Security Council presented to President Harry S. Truman on April 14, 1950. It was one of the most important statements of American policy that launched the Cold War. In the words of scholar Ernest R. May, NSC-68 "provided the blueprint for the militarization of the Cold War from 1950 to the collapse of the Soviet Union at the beginning of the 1990s." NSC-68 and its subsequent amplifications advocated a large expansion in the military budget of the United States, the development of a hydrogen bomb, and increased military aid to allies of the United States. It made the containment of global Communist expansion a high priority. NSC-68 rejected the alternative policies of friendly détente and rollback against the Soviet Union.
ground_truth: President