National Museum of Nuclear Science & History
Herbert Etzler worked for the Roane-Anderson Company.
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.
Attended New York University.
Robert Cantrell joined the Manhattan Project in 1943 and worked as an architect for Dr. Walter Zinn’s design group at the University of Chicago.
Edward G. Velazquez served in 1027th Air Material Squadron.
