National Museum of Nuclear Science & History
Bob Purbrick was an American physicist. Purbrick was born in 1919 in Salem, Oregon. He received a B.A.
G. Robert Gunther-Mohr joined the Manhattan Project in 1944. Mohr worked on the top secret polonium trigger being developed for the plutonium bomb at the Monsanto Chemical Company in Dayton, Ohio.
Mary Lanahan was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
