National Museum of Nuclear Science & History
Stanley McCracken worked for the United States Engineer District Office.
H. F. Priest worked for the Union Carbide & Carbon Corporation.
Earl Rau served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Stephen Lawroski was an American chemical engineer who worked on the Manhattan Project at the University of Chicago’s Metallurgical Laboratory from 1944-1946.