National Museum of Nuclear Science & History
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Alvan Sauer worked for the United States Engineer District Office.
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.
Morris worked in the 300 Area at Hanford during the Manhattan Project.