National Museum of Nuclear Science & History
M. A. Campbell worked for the Roane-Anderson Company.
Ralph Alexander Gardner-Chavis (1922-) is a chemist and pioneer of hard plastics who worked at the University of Chicago’s Met Lab during the Manhattan Project.
W. H. Seaman worked for the United States Engineer District Office.
Riser worked at the 200 West Area at Hanford during the Manhattan Project.