National Museum of Nuclear Science & History
William J. Nicholson was born on March 2, 1924 in Chicago, Illinois. Growing up, he was interested in engineering, aviation, and aeronautics.
E. F. Ryan worked for the United States Engineer District Office.
Rachel Gilbreath was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gerald Tyler was a commanding officer at Los Alamos during the Manhattan Project.
