Fortescue (1917, p. 186), citing d'Urban, McGuffie (1951, p. 106) and Fletcher (1999, p. 149) (citing Fortescue). Fortescue, Sir John (1917), A History of the British Army, vol. VIII, Macmillan, retrieved 13 September 2007 McGuffie, T. H., ed. (1951), Peninsular Cavalry General: (1811–13) The Correspondence of Lieutenant General Robert Ballard Long, George G. Harrap Fletcher, Ian (1999), Galloping at Everything: The British Cavalry in the Peninsula and at Waterloo 1808–15, Spellmount Publishers Ltd, ISBN978-1-86227-016-9