National Museum of Nuclear Science & History
M. G. Davis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James B. Snodgrass was a member of the Mounted Military Police working on site security at Los Alamos and the Trinity test site.
D. L. Donavan worked for the Roane-Anderson Company.
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
