We are building a list but here are some key reading resources;
Fortress Britain 1940 by Andrew Chatterton (Casemate 2024)
Suffolk Secret Army by Geoff Dewing 1996
East Ridings Secret Resistance by Alan Williamson (Williamson Press 2004)
Churchill's MOST SECRET Special Duties Branch by A.S. Pye and E. Simak (2014)
With Britain in Mortal Danger by J.W.Warwicker (Cerberus Publishing Ltd. 2002)
Tales of Peter Potter by Hugh Frostick (Frostick Publishing 2017)
The Somerset Home Guard by Jeffrey Wilson
Britain’s Guerrilla Army: Plans for a Secret War 1939-45 by Malcolm Atkin (Pen and Sword 2024)
Fighting Nazi Occupation by Malcolm Atkin (Pen and Sword 2015)
To The Last Man by Malcolm Atkin (Pen and Sword 2019)
Operation Cornwall 1940-1944 The Fal, Helford and D-Day by Viv Acton and Derek Carter (Landfall Publication 1994)
The Last Ditch by David Lampe (Cassell and Co. 1968)
Somerset versus Hitler by Donald Brown (Countryside Books 1999)
Churchill’s Underground Army by J.W.Warwicker (Frontline Books 2008)
Resisting the Nazi Invader by Arthur Ward (Pen & Sword 2013)
The Mercian Maquis by Bernard Lowry & Mick Wilks (Logaston Press Oct 2007)
Chirnside 1: Auxiliary Units Special Duties Branch OUT-Station by Captain Hugh May (Dudfield Publications 2014)
Standing up to Hitler - The story of Norfolk's Home Guard and "Secret Army" 1940-1944 by Adrian Hoare 1997
The Secret Army : Wartime Underground Resistance in Lincolnshire by Mark Sansom (Heritage Lincolnshire 2004)
Most Secret : Uncovering the story of Northumberlands Underground Resistance - the Auxiliary Units of WW2 by Stephens Lewins (Wanney Books 2014)
The Somerset Underground : A History of the GHQ Auxiliary Units in Somerset 1940 to 1944 by Tim Wray (Mirador Publishing 2016)
The Secret Sussex Resistance by Stewart Angell (Middleton Press 1996)
Churchill’s Secret Army 1939-1945 by A.E.Cocks (The Books Guild Ltd. 1992)
Major N.V.Oxenden M.C: Auxiliary Units History and Achievement 1940-1944. Reproduction of an original document published by Parham Air Museum.
Winston Churchill’s Toyshop by Stuart Macrae (The Round world Press Ltd. 1971)
Gubbins and S.O.E. by Peter Wilkinson and Janet Bright Astley
Home Guard by David Carroll (Sutton Publishing Ltd. 1999)
Arthur Gabbitas: The British Resistance Organisation; An article in Defence Lines, News Letter No.6 of the Defence of Britain Project. (Council for British Archaeology, November 1996).