The son of the Hon. Henry Erskine; he succeeded his uncle as Earl of Buchan in 1829.

REFERENCES TO David Steuart Erskine, twelfth earl of Buchan:

Sydney Smith to Francis Jeffrey, [December 1803] 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)