National Museum of Nuclear Science & History
H. M. Ellis, Jr. worked for the Roane-Anderson Company.
W. R. McIntosh worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Martha G. Johnson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ted Tompkins worked for the United States Engineer District Office.