In just six nights of bombing during the Second World War, the City of London lost 26 organs. Seventy years later, David S. Knight surveyed what was lost and what replaced them in this illustrated article, reproduced by permission of Choir & Organ magazine. David first presented this material as part of a paper for a meeting of the British Institute of Organ Studies held in November 2009, in the City of London.  The paper was given in the church of St Dunstan in the West where the organ, although not destroyed in the war, was rebuilt shortly after it by Willis…