National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Andrew G. Demo served in the 393rd Bombardment Squadron.
William Swank worked for the Kellex Corporation at the K-25 Plant.
Wesley P. Peterson served in the 390th Air Service Group.
Donald “Don” Hornig (1920-2013) was an American chemist. Hornig was recruited to join the laboratory at Los Alamos in 1944, just one year after receiving his doctorate in physcial chemistry from Harvard University.
