National Museum of Nuclear Science & History
Barry worked in the United States Engineer District Office.
J. T. Calvert worked for the Union Carbide & Carbon Corporation.
Donald William Kerst is an American physicist known for his development of the betatron in 1940 and the Water Boiler Reactor at Los Alamos during the Manhattan Project.
Waldemar Nielsen (1917-2005) worked on the postwar surveys of Hiroshima and Nagasaki in Japan. Nielsen was born in Greensburg, Pennsylvania.