"Vernon, Baron (GB, 1762)", www.cracroftspeerage.co.uk, Cracroft's Peerage – The Complete Guide to the British Peerage & Baronetage, Professor Leveson Francis Vernon-Harcourt, Professor of Civil Engineering, University College London 1882–1905 (b. 25 January 1839; d. 14 September 1907), archived from the original on 2 June 2012
doi.org
Unknown (January 1908). "Obituary. Leveson Francis Vernon-Harcourt, 1839-1907". Minutes of the Proceedings of the Institution of Civil Engineers. 171 (1908): 421–423. doi:10.1680/imotp.1908.17354.
"Vernon, Baron (GB, 1762)", www.cracroftspeerage.co.uk, Cracroft's Peerage – The Complete Guide to the British Peerage & Baronetage, Professor Leveson Francis Vernon-Harcourt, Professor of Civil Engineering, University College London 1882–1905 (b. 25 January 1839; d. 14 September 1907), archived from the original on 2 June 2012
