National Museum of Nuclear Science & History
Harmon worked for Stone and Webster Engineering Corporation.
Before the war Oswald Greager was a high-ranking DuPont chemist. He took leave from DuPont in 1942 to join the Army's Chemical Warfare Service.
William R. Purnell (1886-1955) was a Rear Admiral in the US Navy and served as the Navy liaison on the Military Policy Committee for the Manhattan Project.
Elsie (Blumer) McMillan lived at Los Alamos during the Manhattan Project. Her husband, Edwin McMillan, was a physicist who worked on implosion at Los Alamos.
