Professor John William Scott (Ian) Cassels, Ph.D., FRS, Fellow of Trinity College since 1949 and Emeritus Sadleirian Professor of Pure Mathematics, died on 27 July 2015, aged 93 years.
Professor Kenneth Langstreth Johnson, M.A., Ph.D., Manchester, FRS, FREng, Emeritus Fellow of Jesus College and former University Professor in Engineering, died on 21 September 2015, aged 90 years.