National Museum of Nuclear Science & History
H. L. Holsopple worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. M. Thomas worked for the United States Engineer District Office.
Sherman Fried was a chemist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
