Papers of the Sykes family of Sledmere > Papers of Sir Mark Sykes (1879-1919) (Second deposit of Papers of the Sykes family) > Correspondence > File of general correspondence. Letters and telegrams to Mark Sykes > Letter from Mabel Beckett, Kirkdale Manor, Nawton, R.S.O., Yorkshire, thanking Mr Sykes for agreeing to speak at Whitby.