Other
Nuclearfiles.org: Chronology on Decision to Bomb
This detailed chronology of the events and communication of 1945-1946 shows Truman's role in the process of the decision to drop the world's first atomic bomb used in warfare upon Hiroshima and then the second upon Nagasaki. Also...
Khan Academy
Khan Academy: The Manhattan Project and the Atomic Bomb
Discusses the Manhattan Project of the United States which worked on developing nuclear weapons during World War II. It led to the two atomic bombs that were dropped on Japan in August 1945, ending the war with Japan.
Harry S. Truman Library and Museum
Harry S. Truman Library & Museum: Truman Biography
A very easy-to-read biographical sketch of Harry S. Truman. Includes suggestions for further reading.
The White House
The White House: Biography of Harry S. Truman
Biography provides interesting facts about the thirty-third president of the United States, Harry S. Truman. A black and white photograph is included.