National Museum of Nuclear Science & History
Robert Rogers was a staff worker at Los Alamos during the Manhattan Project.
Dunn worked in the United States Engineer District.
L. F. Preston worked for the United States Engineer District Office.
George Kistiakowsky (1900-1982) was a Ukrainian-American physical chemist. He joined the Manhattan Project in late January 1944, leaving his role as chief of the National Defense Research Committee’s Explosives Division.