National Museum of Nuclear Science & History
H. VanDerHorn served in the 390th Air Service Group.
Frederick Ross served in the 1395th Military Police Aviation.
Virginia Olsson worked as a secretary (today the term would be ‘administrative assistant’) first with Colonel J.
Jay Wechsler enlisted in the Army in 1943 and spent several months at Oak Ridge working as an Army construction engineer, In the winter of 1943, he was suddenly transferred to Los Alamos, where he began working directly with Otto Frisch.