National Museum of Nuclear Science & History
James Roberts was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Florentino Ortiz was a carpenter at Los Alamos during the Manhattan Project.
Vivian Olum was a staff worker at Los Alamos during the Manhattan Project. She was married to physicist Paul Olum.
Olge W. Hess was a research assistant at the University of Chicago’s Metallurgical Laboratory.