Yeomanry Regiments, Royal Artillery, Part 1: The Field Regiments 1920-1946, Welwyn: Hertfordshire Yeomanry and Artillery Trust/Hart Books, 1999, ISBN 0-948527-05-6. Edward M. Spiers, The Army and Society 1815–1914, London: Longmans, 1980, . War Office,Titles and Designations of Formations and Units of the Territorial Army, London: War Office, 7 November 1927 (RA sections also summarised in Litchfield, Appendix IV). Lt-Col W.E. Wilson-Johnston, An Account of the Operations of the 18th (Indian) Division in Mesopotamia, December, 1917, to December, 1918, London: St Martin's Press, 1920/Uckfield: Naval & Military Press, 2006, . External sources Mark Conrad, The British Army, 1914 (archive site) British Army units from 1945 on British Artillery in World War 2 The Drill Hall Project Great War Centenary Drill Halls The Long, Long Trail Oxford Dictionary of National Biography The Regimental Warpath 1914–1918 (archive site) Royal Artillery 1939–1945 Shoreham Fort Graham Watson, The Territorial Army 1947 Sussex Military units and formations established in 1859 Military units and formations in Sussex Military units and formations in Eastbourne Military units and formations in Brighton and Hove Military units and formations disestablished in 1961