National Museum of Nuclear Science & History
W. H. Grahm worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Holman worked at the 300 Area at Hanford during the Manhattan Project.
F. D. Ethridge, Jr. worked for Clinton Laboratories at the X-10 Reactor.
Lawrence H. Johnston was an American physicist. After receiving his bachelor’s degree in physics from the University of California, Berkeley in 1940, Johnston followed his mentor Luis Alvarez to MIT.