National Museum of Nuclear Science & History
Lt. Col. Thomas John Classen served as a lieutenant colonel in the 393rd Bombardment Squadron. By 1943, Tom was the captain of the 72nd Squadron.
Evans worked in the United States Engineer District Office.
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.
