National Museum of Nuclear Science & History
Paul Snodgrass worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. J. Curtis worked for Clinton Laboratories at the X-10 Reactor.
Celia Szapka Klemski was working as a secretary for the State Department in Washington, DC when she was transferred to Manhattan to work on the Manhattan Project in 1942.
Waldemar Nielsen (1917-2005) worked on the postwar surveys of Hiroshima and Nagasaki in Japan. Nielsen was born in Greensburg, Pennsylvania.