Gwyther, Matthew (15 July 2000). "Sir Thomas Sopwith". The Daily Telegraph. London. Archived from the original on 9 April 2013. Retrieved 9 November 2011.
"Matthew Arnold". Representative Poetry Online. Archived from the original on 11 January 2012. Retrieved 8 November 2011.
"Malcolm Arbuthnot". kittybrewster.com. Archived from the original on 25 August 2006. Retrieved 7 November 2011.{{cite web}}: CS1 maint: unfit URL (link)
Gwyther, Matthew (15 July 2000). "Sir Thomas Sopwith". The Daily Telegraph. London. Archived from the original on 9 April 2013. Retrieved 9 November 2011.
Westlake, Ray. (2011). The Territorials : 1908–1914 : a guide for military and family historians. Barnsley, South Yorkshire. pp. 19, 50, and 119. ISBN9781848843608. OCLC780443267.{{cite book}}: CS1 maint: location missing publisher (link)