National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
William Kann was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Forrest Harmon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
