Papers of the Sykes family of Sledmere > Papers of Sir Mark Sykes (1879-1919) (Second deposit of Papers of the Sykes family) > Correspondence > File. General correspondence, letters and telegrams to Mark Sykes > Letter from W.B. Wilberforce, St Oswald's, Filey, apologising for missing his lecture and giving information about a leaflet that he has had circulated (not present).