National Museum of Nuclear Science & History
William Schafer was a staff worker at Los Alamos during the Manhattan Project.
Lewis worked in the 200 W Area at Hanford during the Manhattan Project.
David H. Frisch was an American physicist. He worked on the Manhattan Project at Los Alamos, working with the Van de Graaff long tank accelerator to measure neutron cross sections.
Harmon worked in the United States Engineer District Office.