National Museum of Nuclear Science & History
Ray Martin worked for the A. S. Schulman Electric Company.
McMahon worked in the 100 D Area at Hanford during the Manhattan Project.
Mary P. Frankel was one of the “human computers” at Los Alamos during the Manhattan Project. In the spring of 1943, Frankel and her husband, Stan, an American physicist who later became a computer scientist, arrived at Los Alamos.
