National Museum of Nuclear Science & History
William “Bill” Harris Penny’s parents came to the United States from Newfoundland in 1910.
Howard R. Kratz (1916-2013) was a nuclear physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Dorothy C. Johnson was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
