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.
Yates worked at the 300 Area at Hanford during the Manhattan Project.
Robert Lyste Thornton was a Canadian-American physicist who oversaw the constuction and operation of the Beta calutron electromagnetic separation Plant in Oak Ridge, Tennessee during the Manhattan Project.