National Museum of Nuclear Science & History
Kopanski worked at the 200 East Area at Hanford during the Manhattan Project.
William Cowart was a design engineer with the Special Engineering Detachment for the Manhattan Project at Los Alamos, New Mexico.
R. P. Ellis worked for the Union Carbide & Carbon Corporation.
Albert Cahn, Jr. (1910-1978) was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
