National Museum of Nuclear Science & History
Halloran worked in the United States Engineer District Office.
James Jensen was a machinist at Hanford, Washington from September 1944 to the end of the war. Jensen's security clearance allowed him to machine parts and complete various tasks for the maintenance of the nuclear piles.
Gross worked at the 100-D Area at Hanford during the Manhattan Project.
R. B. Cathie worked for the Roane-Anderson Company.
Gritten worked in the United States Engineer District Office.