National Museum of Nuclear Science & History
Charles Waugh worked for the United States Engineer District Office.
R. A. Jones worked for the Roane-Anderson Company.
Arthur Weisberg was a mechanical engineer with the Special Engineer Detachment assigned to the Metallurgical Lab at the University of Chicago.
P. N. Autry worked for the J.A. Jones Construction Company.
W. L. Richardson worked for the Union Carbide & Carbon Corporation.