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.
H. R. Kroegar worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. W. Lazear worked for the Tennessee Eastman Corporation at the Y-12 Plant.
