Frances Fyfield (4 October 2012). Undercurrents. Little, Brown Book Group. ISBN978-1-4055-2048-5. Archived from the original on 15 April 2017. Retrieved 24 September 2015.
Treanor, Thomas Stanley (1904). Heroes of the Goodwin Sands. London: The Religious Tract Society. Archived from the original on 8 March 2016. Retrieved 28 April 2020.
Sandra Kemp, Charlotte Mitchell, and David Trotter (eds). A. M. Irvine, The Oxford Companion to Edwardian Fiction, Oxford University Press, 1997 Print ISBN9780198117605, Current Online Version: 2005 eISBN9780191727382(subscription required)
"Monday 30 April 1660". The Diary of Samuel Pepys. Archived from the original on 9 June 2012. Retrieved 24 September 2015.
Treanor, Thomas Stanley (1904). Heroes of the Goodwin Sands. London: The Religious Tract Society. Archived from the original on 8 March 2016. Retrieved 28 April 2020.
Frances Fyfield (4 October 2012). Undercurrents. Little, Brown Book Group. ISBN978-1-4055-2048-5. Archived from the original on 15 April 2017. Retrieved 24 September 2015.