National Museum of Nuclear Science & History
Frank Holden was a member of the Special Engineering Detachment at Los Alamos.
Frank Holden driving a truck near Los Alamos.
Holden, pictured at the far right, poses with a few other members of the SED
Holden and some other members of the SED pose for a picture near the Q-site at Los Alamos
G. Robert Gunther-Mohr joined the Manhattan Project in 1944. Mohr worked on the top secret polonium trigger being developed for the plutonium bomb at the Monsanto Chemical Company in Dayton, Ohio.
Cowan worked at the 100-B Area at Hanford during the Manhattan Project.
