Complex sentence: Norah Lillian Penston (20 August 1903--1 February 1974) was a British botanist and academic administrator, principal of Bedford College, University of London, from 1951 to 1964.
Split into simpler sentences: Norah Lillian Penston (20 August 1903--1 February 1974) was a British botanist and academic administrator. She was principal of Bedford College, University of London, from 1951 to 1964.