National Museum of Nuclear Science & History
Holl worked for Stone and Webster Engineering Corporation.
As Secretary of War under Presidents Franklin D. Roosevelt and Harry Truman, Henry L. Stimson (1867-1950) oversaw the entire Manhattan Project, and was responsible for appointing key project leaders and authorizing project construction sites across the US.
Robert L. Stevenson served in the 1027th Air MAterial Squadron.
Leonard Czarniecki served as procurement planning and control officer with 9812th Technical Services Unit (Special Engineer Detachment) at Oak Ridge, TN, with the Y-12 Plant.
Harold E. Young was a staff worker at Los Alamos during the Manhattan Project.