National Museum of Nuclear Science & History
Messick worked in the 200 West Area at Hanford during the Manhattan Project.
John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
Henry DeWolf Smyth (1898-1986) was an American physicist, diplomat, and bureaucrat. During World War II, Smyth was a member of the National Defense Research Committee’s Uranium Section.
