John Whishaw to Thomas Smith, 5 July 1817 in The “Pope” of Holland House: Selections from the Correspondence of
John Whishaw and his Friends 1813-1840 (London: T. Fisher Unwin, 1906)
Sydney Smith to Catharine Amelia Smith, [12 May 1826] in A Memoir of the Reverend Sydney Smith. By his Daughter, Lady Holland. With a
Selection from his Letters, edited by Mrs. Austin 2 vols (London: Longman, Brown, Green, and Longmans, 1855)