National Museum of Nuclear Science & History
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Barton B. Crespin served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Necessary Evil.
Geoffrey Chew was an American physicist. Born and raised in Washington, DC, Chew graduated from high school at the age of 16.
John Luttrell worked for the United States Engineer District Office.