 The ceremony had been preceded by Illingworth delivering the Moynihan Centenary Lecture.On 6 October 1965, Illingworth gave a talk at the Royal Philosophical Society of Glasgow titled 'Joseph Lister – Surgeon-Biologist'.On 14 October 1965, again as part of the Lister Centenary celebrations, Illingworth delivered a talk titled 'Lister's Legacy to Humanity' at the Washington Hilton Hotel, Washington DC, USA, to the Washington branch of the English-Speaking Union.