National Museum of Nuclear Science & History
R. H. Martin worked for the United States Engineer District Office.
Hutchins worked at the 300 Area at Hanford during the Manhattan Project.
Lewis W. McDuffie served in the 603rd Air Engineering Squadron.
Kathleen “Kay” (Gavin) Florin was a clerk in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.