Martin Hertz joined Mound Laboratory in January 1948. There, Hertz was placed in the Source Group and was tasked with making neutrons sources using the polonium-alpha-beryllium reaction. Hertz took over the Source Group in 1965, where he remained until 1982.
Gus Essig began working on the Manhattan Project in May of 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. Essig became supervisor of the initiator program until 1962, when he transferred to Mound Laboratory's administrative building.
Alexandra Levy: All right, we are here on December 28, 2012 with Max Gittler. Please say your name and spell it.
Max Gittler: Max Gittler, M-a-x G-i-t-t-l-e-r.
Levy: Where are you from?
Gittler: New York, New York City, the Bronx.
Levy: So how did you become involved in the Manhattan Project?
Cynthia Kelly: Why don’t you start, George, by telling us your name and spelling it.
George Mahfouz: I’m George Mahfouz, last name is spelled M-A-H-F-, as in Frank, -O-U-Z, as in zebra.
Kelly: Is that Egyptian?
Mahfouz: It’s Middle Eastern. The name is Syrian.
Kelly: Anyways, sorry, next question—tell us about your background, you know, where you went to college...
George Mahfouz became involved in the Manhattan Project first in Decatur, Illinois building gaseous diffusion tubes for the K-25 plant at Oak Ridge, Tennessee. Later, Mr. Mahfouz was involved in the Dayton Project, working on the process to make the trigger for the atomic bomb.