National Museum of Nuclear Science & History
Frank Case, Jr. worked for the Roane-Anderson Company.
August Balestri was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Oftdahl worked in the 200 West Area at Hanford during the Manhattan project.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
