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 > Invitation from Sir Samuel Sadler to a luncheon for the Yorkshire Division of the National Union of Conservative and Constitutional Associations at Middlesbrough on Friday 26th November 1909. ('Regret' written on the invitation.)