^Present at the enthronement of the First Bishop Of Newcastle > The Times (London, England), Friday, 4 August 1882; pg. 10; Issue 30577
^Obituary.The Ven Robert Long > The Times (London, England), Monday, 25 November 1907; pg. 8; Issue 38499
^A Biographical List of All Known Students, Graduates and Holders of Office at the University of Cambridge, from the Earliest Times to 1900 Vol. iv. Kahlenberg – Oyler, 1947. Online version at the Internet Archive
^‘LONG, Ven. Robert’, Who Was Who, A & C Black, an imprint of Bloomsbury Publishing plc, 1920–2016; online edn, Oxford University Press, 2014; online edn, April 2014 accessed 1 June 2017