Wilbur G. James

Arthur S. Olson

Arthur S. Olson was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Howard Linderking

Raymond A. Taylor

Raymond Taylor was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.

Harry Truman

Harry S. Truman (1884-1972) was the 33rd President of the United States of America. Truman first learned of the Manhattan Project after the death of President Roosevelt in April of 1945, when he relinquished his role as Vice President and took the oath of office as the next president of the United States.