National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
W. H. Hale worked for the Edenfield Electric Company.
Ardis (Thomas) Monk was a research assistant and mathematician at the University of Chicago Met Lab, where she performed computations for Eugene Wigner’s theoretical physics group.
R. A. Mathews worked for the United States Engineer District Office.
O’Connell worked in the 200 West Area at Hanford during the Manhattan Project.
