After receiving her PhD in 1950, Newcombe never worked full-time as a chemist, due in large part to the fact that, at that time, married women with children were not expected to work. Daughter Nora was born in 1951 and son George in 1953, both in Toronto, where Alan was working at the Ontario Research Foundation. In 1955, the Newcombes moved to
Hamilton, Ontario, where Alan took a job as Director of Research and Development for Porritts & Spencer, a manufacturer of felts for paper making. Son Ian was born in 1956. While raising her three children, Newcombe worked occasionally as an instructor in chemistry. She also took advantage of her knowledge of several languages, including Czech, German and English, to translate scientific articles. In 1962, she briefly tried teaching high school chemistry, but was dismayed by her students' lack of interest in her subject. After meeting
Norman Alcock, a physicist who had founded the Canadian Peace Research Institute, Newcombe realized that she had found her calling: the use of science to better understand the path to peace. Alan joined her in working for CPRI shortly thereafter. The Newcombes founded the Peace Research Institute in Dundas, Ontario in the late 1970s. The Canadian Peace Research and Education Association was also their initiative. They founded and published for many years two scholarly journals: Peace Research Abstracts and Peace Research Reviews. They also organized summer institutes on peace research at
Grindstone Island, located in the Rideau Lakes, which was a center for peace education managed by the
Canadian Friends Service Committee. Hanna was prominent for many decades in the
World Federalist Movement, the Canadian Voice of Women, and the Canadian Religious Society of Friends (Quakers). She was also an advocate of
mundialization and of twinning. Her writing ranged over many topics, including ruminations on philosophy, religion and the history of science. == Death ==