National Museum of Nuclear Science & History
J. I. Mitchell worked for the Roane-Anderson Company.
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.
Urban worked at the 200 West Area at Hanford during the Manhattan Project.
Banic was a Union Carbide employee who worked at Oak Ridge during the Manhattan Project.