Photograph of Queen Elizabeth II and Commonwealth leaders, taken at the 1960 Commonwealth Conference, Windsor Castle. Front row: (left to right) E. J. Cooray, Walter Nash, Jawaharlal Nehru, Elizabeth II, John Diefenbaker, Robert Menzies, Eric Louw. Back row: Tunku Abdul Rahman, Roy Welensky, Harold Macmillan, Mohammed Ayub Khan, Kwame Nkrumah — May 1960 — (Photo: John G. Diefenbaker Centre, Saskatoon, Canada / British Government)