This section includes letters of support and congratulation, opposition and excoriation, appeals for assistance and employment, letters of recommendation and introduction, and such like material. A sample of the (carefully filed) letters from individuals deemed 'cranks' has been retained, as has a quantity of the largely ephemeral letters from seekers after autographs and signed photographs. Dealing with these consumed the time of the private office and private secretaries, as did more obviously important matters, but good manners and good public relations demanded that reasonable requests be met. The classification of 'crank' was used relatively infrequently. The index includes only the more significant correspondents.

The Correspondence section has been weeded to leave examples of a once more numerous class of ephemera. See also MSS. Welensky Papers 692/12-15 for honours and appointments.