National Museum of Nuclear Science & History
Leonard Reed was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Stewart W. Williams served as a 1st lieutenant in the 393rd Bombardment Squadron of the 509th Composite Group.
Butt worked in the United States Engineer District Office.
Henry Nowak worked for the Union Carbide & Carbon Corporation.
Stanley Krzyck was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.