National Museum of Nuclear Science & History
E. E. Milligan worked for the Edenfield Electric Company.
Mary Argo was a physicist at Los Alamos during the Manhattan Project. She and her husband, physicist Harold Argo, were students of Edward Teller.
Cowan worked at the 100-B Area at Hanford during the Manhattan Project.
R. H. McCormick worked for the Roane-Anderson Company.