National Museum of Nuclear Science & History
Groom worked at the 300 Area at Hanford during the Manhattan Project.
R. R. Rebol served in the 509th Headquarters.
Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lyman Parratt (1908-1995) was an American physicist. Parratt was born in Salt Lake City. He studied at the University of Utah and earned a Ph.