National Museum of Nuclear Science & History
M. G. Davis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
M. G. Sonner worked for the J.A. Jones Construction Company.
Fred Vaslow, a physical chemist, began working on the Manhattan Project while a graduate student at the University of Chicago.
