National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Ardes Shea (née Memmott) worked in a DuPont office at Hanford, WA during the Manhattan Project. Ardes was born in Scipio, Utah in December of 1922.
F. R. O'Brien worked for the Tennessee Eastman Corporation at the Y-12 Plant.