National Museum of Nuclear Science & History
Butscher worked for Stone and Webster Engineering Corporation.
Duffer Crawford worked for the civilian contractor Kellex Coroporation in New York under the supervision of Judson Swearingen.
Harrie Massey (1908-1983) was an Australian physicist. A brilliant student of physics, Massey arrived from his native Australia at Cambridge College in the United Kingdom on an academic scholarship.
Robert Plott was a research assistant at the Chicago Met Lab during the Manhattan Project.
