National Museum of Nuclear Science & History
Fred Vogel was an American chemical engineer who worked at Los Alamos during the Manhattan Project. Vogel studied at Lehigh University in Pennsylvania and later worked as Chief Engineer for the Cornell Machine Company and for the Centaur Machine Company.
Ruth Marshak was an American teacher and the wife of physicist Robert Marshak. Marshak was born in 1916.
R. L. Flanary worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Klein was a member of the Special Engineering Detachment. He worked at the Metallurgical Lab at the University of Chicago and at Los Alamos.