National Museum of Nuclear Science & History
Barksdale worked for Stone and Webster Engineering Corporation.
Howard Braasch was a laborer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Samuel Podgor was born to Russian-migrants in New York City. He served in the Special Engineer Detachment at Los Alamos, NM where he worked in the Theoretical Division under Klaus Fuchs.
J. P. Clark worked for the Roane-Anderson Company.