National Museum of Nuclear Science & History
John Morris worked for the United States Engineer District Office.
Sappenfield worked at the 300 Area at Hanford during the Manhattan Project.
Gertrude Nissenbaum was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Anabel Joyce (Ogg) Warnell worked on the Manhattan Project at Oak Ridge, TN.
