National Museum of Nuclear Science & History
C. L. McCallum worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Babcock worked at the 300 Area at Hanford during the Manhattan Project.
Julius Tabin was a physicist and a member of Enrico Fermi’s team at Los Alamos that developed the world’s first atomic bomb during World War II.
Frederick H. Nelson served in the 1st Ordnance Squadron.