Son of the first marquess of Ailsa; he was an officer in the 16th Lancers and equerry to William IV; in 1827 he married Augusta Fitzclarence, fourth daughter of William IV.

REFERENCES TO Hon. John Kennedy Erskine:

Thomas Creevey to Elizabeth Ord, 22 March 1831 in The Creevey Papers: A Selection from the Correspondence & Diaries of the late Thomas Creevey, M.P. (London: John Murray, 1903)