National Museum of Nuclear Science & History
Bergan worked in the United States Engineer District Office.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
Elbert Lowdermilk owned and operated the construction company that connected the Los Alamos laboratory to the rest of the country throughout World War II.
Gerald F. Smith served in the Special Engineer Detachment at Los Alamos, NM during the Manhattan Project.
