National Museum of Nuclear Science & History
M. O. Swanson worked for the United States Engineer District Office.
Butrimo worked at Los Alamos during the Manhattan Project.
Rosie M. Hunter was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John Raper worked for Clinton Laboratories at the X-10 Reactor.
Margaret Brown was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
