National Museum of Nuclear Science & History
Silver worked for Stone and Webster Engineering Corporation.
Harry Allen worked in procurement and supply for Los Alamos during the Manhattan Project. He was also involved in organizing preparations for the Trinity Test.
C. H. Hemmel, Jr. served in the 390th Air Service Group.
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.
