Riviere, Michael (1965), "The Rev. William Gunn B.D., A Norfolk Parson on the Grand Tour", Norfolk Archaeology, 33 (3): 351–378, doi:10.5284/1077967, & Riviere, Michael (1965), "The Rev. William Gunn B.D., A Norfolk Parson on the Grand Tour", Norfolk Archaeology, 33 (4): 379–398, doi:10.5284/1077968; Riviere is extremely prejudiced towards Aufrère in his account here.
oxforddnb.com
See Daniel Szechi, 'Lockhart, George, of Carnwath (1681?–1731)', Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, May 2011 accessed 26 June 2014
