National Museum of Nuclear Science & History
Richard Smith worked for the United States Engineer District Office.
Charles Dreckshage served in the 603rd Air Engineering Squadron.
Mason worked in the 300 Area at Hanford during the Manhattan Project.
Granville K. Hartley served in the 1027th Air Material Squadron.
George Weisiger worked at Oak Ridge during the Manhattan Project, although it remains unknown what his specific duties were.