National Museum of Nuclear Science & History
Bergen McCormick worked for the J.A. Jones Construction Company.
D. S. Ewing worked for the Tennessee Eastman Corporation at the Y-12 Plant.
L. E. Barnes worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Attended Carnegie Technical Institute.
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
