National Museum of Nuclear Science & History
Mumford worked in the 200 East Area at Hanford during the Manhattan Project.
Donald Engelkemeior was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.
Nees worked at the 300 Area at Hanford during the Manhattan Project.
M. Parks worked for the Tennessee Eastman Corporation at the Y-12 Plant.