National Museum of Nuclear Science & History
Hugo Leckelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Butler worked at the 300 Area at Hanford during the Manhattan Project.
De Busman worked in the United States Engineer District.
Calhoun worked at the 300 Area at Hanford during the Manhattan Project.
Julie Langham Grilly was a laboratory technician at the Los Alamos Laboratory in New Mexico. She was married to Dr.