National Museum of Nuclear Science & History
Leo Zbanek worked for the United States Engineer District Office.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.
Seymour Ratner was a staff worker at Los Alamos during the Manhattan Project.
Ray Williams was a member of the 1st Ordnance Squadron in the 509th Composite Group in Wendover, Utah and on Tinian Island in the Pacific in 1945.
