National Museum of Nuclear Science & History
Stephen Kasunic was a mechanical engineer. He worked on the Manhattan Project at Los Alamos, as a design engineer in the Weapons Experimental Experimental Physics (W-1) group on the steering committee for the gun-type bomb assembly.
Norris W. Embrey was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
A. F. Tyra worked for the Union Carbide & Carbon Corporation.