National Museum of Nuclear Science & History
Messick worked in the 200 West Area at Hanford during the Manhattan Project.
Cossette Davis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Richard Popham oversaw radiation safety in the Chemistry-Metallurgy Division at Los Alamos during the Manhattan Project.
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.
