National Museum of Nuclear Science & History
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Roslyn D. Robinson (b. 1920) worked on the Manhattan Project in Chicago. She was born in New York City, and attended Brooklyn College.
J. D. Ellett worked at the 200 West Area at Hanford during the Manhattan Project.
