National Museum of Nuclear Science & History
H. J. Ratjen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. N. Fox worked for the Union Carbide & Carbon Corporation.
Gus Essig began working on the Manhattan Project in May, 1946 in Dayton, Ohio. Essig was selected to work in the highly classified initiator program and spent several months at Los Alamos learning how to design and construct initiators.
