National Museum of Nuclear Science & History
Winzenburg worked for Stone and Webster Engineering Corporation.
Alvina Petrus was a stenographer and clerical worker at the Chicago Met Lab.
E. A. Prichard worked for Clinton Laboratories at the X-10 Reactor.
Klaus Fuchs (1911-1988) was a German theoretical physicist and spy who worked at Los Alamos during the Manhattan Project and passed atomic secrets to the Soviet Union.
