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 W.Kay [Wakeson], Union Defence League, Unionist Associations of Ireland and Conservative & Unionist Associations of Great Britain, 26, Victoria Street, Westminster, S.W.