National Museum of Nuclear Science & History
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.
Robert William Lockridge attended the University of Maryland. Here was active in their ROTC program, and in 1930, he earned a Bachelor of Science in Engineering.
Langworthy worked in the 100 D Area at Hanford during the Manhattan Project.
D. V. Parker worked for the Roane-Anderson Company.
