National Museum of Nuclear Science & History
Graf worked at the 300 Area at Hanford during the Manhattan Project.
Howard Parsons was an American physicist. Parsons was born in Chicago in 1920. He receieved a B.S. from the University of Chicago, and shortly afterwards was hired to work on the Manhattan Project as a research assistant at the Chicago Met Lab.
R. O. worked for Clinton Laboratories at the X-10 Reactor.
