National Museum of Nuclear Science & History
Harry Grisham worked for the Kellex Corporation at the K-25 Plant.
D. Danser worked for the J.A. Jones Construction Company.
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.
George Cowan joined the Manhattan Project in 1942 at the Met Lab as a chemist for Enrico Fermi’s group, and also worked for Columbia University.
