HMS Graph (English Wikipedia)

"Grizedale Hall Prisoner-of-War Camp". The Battle of Britain London Monument. Archived from the original on 27 September 2011. Retrieved 4 February 2010.

britishpathe.com

His Majesty's U-Boat (Motion picture). London: British Pathé. 9 October 1941. 1133.07. Retrieved 13 September 2009.

Thomas, Andrew (24 May 2001). "Icelandic Hunters – No 269 Squadron Royal Air Force" (PDF). Aviation News. St Leonards-on-Sea, East Sussex: HPC Publishing. Archived from the original (PDF) on 10 June 2011. Retrieved 13 September 2009.

Christopher J White, Peter Robinson. "Commodore Henry Owen L'Estrange, DSC, RD, RFA". Heroes of the RFA. www.historicalrfa.org. Retrieved 29 May 2011.

The Imperial War Museum's collection includes a recorded interview of former RAF Flying Officer Hugh Eccles, who was one of the crew of this aircraft.
"Bomb Anti Submarine 35 lb Hollow Charge". Collections and Research. Imperial War Museum. Retrieved 23 February 2012.

Gladstone, Lieutenant G.V. (30 September 1974). "HMAS Quickmatch Takes a Prize". Naval History Society of Australia. Retrieved 12 May 2014.

"How flower power beat a U-Boat in the Atlantic". Barrow Submariner's Association. Archived from the original on 4 October 2013. Retrieved 26 June 2013.
Myers, Bill. "Graph (P715)". Boat Database: Graph. Submariner's Association, Barrow–in–Furness Branch. Archived from the original on 16 May 2013. Retrieved 13 November 2012.

Helgason, Guðmundur. "HMS Graph (P 715)". German U-boats of WWII - uboat.net. Retrieved 25 September 2011.
Helgason, Guðmundur. "The Type VIIC Uboat U-570". German U-boats of WWII - uboat.net. Retrieved 25 September 2011.
"HMS Graph (P 715)". Allied Warships. uboat.net. Retrieved 26 February 2012.

"A Grã-Bretanha Defensora da Liberdade [Great Britain, Defender of Liberty]" (Poster). Imperial War Museum: Posters of Conflict. Visual Arts Data Services. Retrieved 25 September 2009.

Thomas, Andrew (24 May 2001). "Icelandic Hunters – No 269 Squadron Royal Air Force" (PDF). Aviation News. St Leonards-on-Sea, East Sussex: HPC Publishing. Archived from the original (PDF) on 10 June 2011. Retrieved 13 September 2009.
"Grizedale Hall Prisoner-of-War Camp". The Battle of Britain London Monument. Archived from the original on 27 September 2011. Retrieved 4 February 2010.
"How flower power beat a U-Boat in the Atlantic". Barrow Submariner's Association. Archived from the original on 4 October 2013. Retrieved 26 June 2013.
"The Gallery". www.atlantik-pirat.com. 6 October 2011. Archived from the original on 25 April 2012. Retrieved 12 October 2011.
Myers, Bill. "Graph (P715)". Boat Database: Graph. Submariner's Association, Barrow–in–Furness Branch. Archived from the original on 16 May 2013. Retrieved 13 November 2012.