National Museum of Nuclear Science & History
L. C. Hafer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Grover G. Cooper, Jr. served as a staff sergeant in the 393rd Bombardment Squadron.
Harold Powell worked for the United States Engineer District Office.
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.
