National Museum of Nuclear Science & History
Blackstone worked in 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.
Floyd A. Lemley served in the 603rd Air Engineering Squadron.
Jack Hefner joined the Manhattan Project at Oak Ridge in 1943. Hefner was a reactor engineer and helped supervise the construction of the X-10 Graphite Reactor.
W. J. Pellow served in the 390th Air Service Group.
