National Museum of Nuclear Science & History
Butscher worked for Stone and Webster Engineering Corporation.
Charles Swenson worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
V. Alexander Nedzel was a research assistant at the University of Chicago Met Lab. After the Manhattan Project, he worked at the Institute for Nuclear Studies and was head of the Aerospace Division at MIT Lincoln Laboratory.
Blackstone worked in the United States Engineer District Office.