National Museum of Nuclear Science & History
Halpern worked in the United States Engineer District Office.
Carpenter worked at the 200 East Area at Hanford during the Manhattan Project.
Attended the Bradley Polytechnic Institute.
A. F. Tyra worked for the Union Carbide & Carbon Corporation.
Frank R. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
