National Museum of Nuclear Science & History
John Tempka (1923-2017) was an American engineer. Tempka was born in Boydsville, Ohio. He was studying at the University of Detroit when he was recruited to join the U.
LaVerna C. McKenzie was a laboratory technician in the Health Division at the University of Chicago Met Lab.
Eleanor Lewis was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
