USA. After her retirement, she continued to volunteer at American Vacuum Society. In 1993 she started the effort to put together a reference handbook for vacuum scientists and engineers to commemorate the 40th anniversary of the society. This resulted in publication of the popular "Handbook of Vacuum Science and Technology" by Academic Press, of which she is the lead co-editor. In 2002, the American Vacuum Society established the Dorothy M. and Earl S. Hoffman student award "to recognize and encourage excellence in continuing graduate studies in the sciences and technologies of interest to AVS." References External links http://www2.avs.org/historybook/links/dhoffman.htm http://philadelphia.swe.org/uploads/2/3/6/6/23664278/hoffman_in_memoriam.pdf Publications American women engineers 1915 births 1996 deaths 20th-century American engineers 20th-century women engineers 20th-century American women scientists American chemical engineers Women chemical engineers