National Museum of Nuclear Science & History
J. B. Mullins worked for the J.A. Jones Construction Company.
Charles Ragan worked for the United States Engineer District Office.
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.
Miriam Young-Krollman was a member of the Women's Army Corps and worked at Los Alamos from April 1945 to August 1946 measuring samples of radioactive materials.