National Museum of Nuclear Science & History
Douglas Meigs was a civilian chemical engineer working for H. K. Ferguson, the company that built and operated the S-50 Thermal Diffusion facility at Oak Ridge.
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
J. R. Pierson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
