National Museum of Nuclear Science & History
J. E. Pearman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John worked at Los Alamos during the Manhattan Project, as Enrico Fermi‘s bodyguard. He moved with his wife and daughter to Los Alamos in 1943.
S. A. Gilgon worked for the Roane-Anderson Company.
Leon O. Jacobson was Associate Director of the Health Division and Section Chief of H-I, Clinical Medicine and Medical Research, at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.