National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Alfred Carson was a mechanical engineer in the Special Engineering Detachment, and spent time at both Oak Ridge, Tennessee, and Los Alamos, New Mexico.
R. H. Eichorn worked for the Roane-Anderson Company.
Monroe Feder was born on February 19, 1919 in Irvington, New Jersey. In 1943, he graduated from New York University.
N. N. Barwick worked for the Tennessee Eastman Corporation at the Y-12 Plant.