National Museum of Nuclear Science & History
Harold E. Young was a staff worker at Los Alamos during the Manhattan Project.
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Matson worked in the 100 B Area at Hanford during the Manhattan Project.
Jack Keen is the son of Lester Orlan Keen, an engineering draftsman at Hanford during the Manhattan Project.
