National Museum of Nuclear Science & History
R. M. Smith worked for the United States Engineer District Office.
John Shoemaker was a staff worker at Los Alamos during the Manhattan Project.
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. B. Diven Jr. worked at the 200 East Area at Hanford during the Manhattan Project.