National Museum of Nuclear Science & History
Gerhardt Padalski was a staff worker at Los Alamos during the Manhattan Project.
Brown worked in the United States Engineer District Office.
Joseph LaRocco was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. W. Winter worked for the Union Carbide & Carbon Corporation.
Marle Velde worked for the Kellex Corporation at the K-25 Plant.