National Museum of Nuclear Science & History
H. E. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Rose Bethe and her husband, Nobel Prize winner Hans Bethe, moved to Los Alamos in early 1943 when Hans was appointed leader of the Theoretical Division for the Manhattan Project.
Robert H. Brown was a chemical engineer/metallurgist. He was educated at Drexel University and Massachusetts Institute of Technology.