National Museum of Nuclear Science & History
Copeland worked in the United States Engineer District Office.
Ayers worked at the 100 D Area at Hanford during the Manhattan Project.
Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ernest O. Lawrence (1901-1958) was an American scientist and 1939 recipient of the Nobel Prize in Physics for his invention of the cyclotron.