National Museum of Nuclear Science & History
De Busman worked in the United States Engineer District.
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.
Meyer Rothenberg served in the 603rd Air Engineering Squadron.
John Brazusky worked for the Roane-Anderson Company.