National Museum of Nuclear Science & History
J. J. Donovan worked for the H. K. Ferguson Company.
Seymour worked at the 200 West Area at Hanford during the Manhattan Project.
Richard Apple was a research associate at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
June H. Roberts was a research assistant in the Instruments Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
