Educated at Eton and Corpus Christi College, Cambridge, where was he tutor to Hugh Percy, afterwards his patron the duke of Northumberland. He was archdeacon of Northumberland and a friend of Robert Peel.

CORRESPONDENCE OF Thomas Singleton:

Thomas Singleton to Sydney Smith, 3 February 1837 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)