National Museum of Nuclear Science & History
J. E. Mason worked for the Roane-Anderson Company.
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.
R. A. Coster worked for the Union Carbide & Carbon Corporation.
