National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
Fred Brownell worked for the Comstock-Bryant Electric Company.
Robert P. Matthews worked as a member of Project Alberta, the team that transported and assembled the Fat Man and Little Boy atomic bombs.
Allen worked at the 200 West Area at Hanford during the Manhattan Project.
Eric Jette (1897-1963) was an American metallurgist. He was a professor of metallurgy at Columbia University School of Mines before being recruited for the Manhattan Project.