National Museum of Nuclear Science & History
Nelen Supert was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Dana Mitchell was an American physicist. He was in charge of procurement for the physics department at Columbia University during the first year of the Manhattan Project.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.