National Museum of Nuclear Science & History
Butt worked in the United States Engineer District Office.
Donavan worked in the United States Engineer District Office.
Walter F. Arnold was a staff member at Los Alamos during the Manhattan Project.
Richard A. Bice was an engineer. He joined the Manhattan Project at Los Alamos in 1944, rising to become the alternate Group Leader in X-Division.
Twichell worked at 200 West Area at Hanford during the Manhattan Project.
