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 Captain R.M. Gladstone, The National Service League, The Hollins, Grosmont, Yorks, asking for the names of Officers who would be willing to take an interest in the above League in the area in which they reside.