National Museum of Nuclear Science & History
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.
Martha G. Johnson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
David L. Patten served in the 1st Ordnance Squadron.
Theodore “Dutch” Van Kirk served as a major in the 509th Composite Group’s Headquarters and Base Services Squadron.