National Museum of Nuclear Science & History
H. F. Zimmerman worked for the J.A. Jones Construction Company.
J. V. O’Connor worked for the Union Carbide & Carbon Corporation.
Norvon Clark worked for the Fercleve Corporation.
Margaret Rand was a research assistant in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John Riddle was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
