National Museum of Nuclear Science & History
Truman P. Kohman (1916-2010) was an American chemist. Kohman worked on the Manhattan Project at the University of Chicago Metallurgical Laboratory and at Hanford, where he met his wife, Jane Sievers.
Ralph Berger was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Halm worked at the 300 Area at Hanford during the Manhattan Project.
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.