National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
J. G. Ayre worked for the J.A. Jones Construction Company.
T. Frydell worked for the Roane-Anderson Company.
Theodore “Ted” Hall (1925-1999) was an American physicist and an atomic spy who passed along detailed information about the implosion-type “Fat Man” bomb and several processes for purifying plutonium to the Soviet Union.
Wilbert “Walt” Meyers (1921-2013) served in the Special Engineer Detachment (SED) at Los Alamos during the Manhattan Project.