William P. Hofmann

Hans Halban

Hans von Halban (1908-1964) was an Austrian born French physicist. He finished his studies in 1934.  He joined nuclear physicist Niels Bohr in Copenhagen, where he and Otto Frisch discovered that heavy water had very little neutron absorption compared to normal water.

Howard Hendrickson

Richard “Dick” H. Nelson

Richard “Dick” H. Nelson served as a private first class in the 509th Composite Group. He was the radio operator on the Enola Gay during its mission to Hiroshima.

Julia M. Wynne

Julia Wynne was a chemist in the Y-12 Plant in Oak Ridge, Tennessee from June 1944 through the end of the war.