National Museum of Nuclear Science & History
M. Carlson worked for the Roane-Anderson Company.
Crawford worked in the United States Engineer District Office.
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Myfanwy Pritchard Roberts worked in Rhydymwyn, Wales as a laboratory assistant in the Tube Alloys program, the British mission to create the nuclear bomb.
