Signal Squadron, RCS – formed at Leeds, probably from 37 AA Signal Sqn, see aboveIn 1959, 42 AGRA Signals was renumbered 308 Signal Squadron. When the AGRA was disbanded, this unit transferred to become 308 Signal Sqn (Guards Brigade). 42 (AA) AGRA was disbanded on 1 May 1961. Footnotes Notes References Basil Collier, History of the Second World War, United Kingdom Military Series: The Defence of the United Kingdom, London: HM Stationery Office, 1957. Richard Collier, Eagle Day: The Battle of Britain, August 6–September 15, 1940, London: Hodder & Stoughton, 1966/Pan Books, 1968, . Gen Sir Martin Farndale, History of the Royal Regiment of Artillery: The Years of Defeat: Europe and North Africa, 1939–1941, Woolwich: Royal Artillery Institution, 1988/London: Brasseys, 1996, . J.B.M. Frederick, Lineage Book of British Land Forces 1660–1978, Vol II, Wakefield, Microform Academic, 1984, . Norman E.H. Litchfield, The Territorial Artillery 1908–1988 (Their Lineage, Uniforms and Badges), Nottingham: Sherwood Press, 1992, . Cliff Lord & Graham Watson, Royal Corps of Signals: Unit Histories of the Corps (1920–2001) and its Antecedents, Solihull: Helion, 2003, . Gen Sir Frederick Pile's despatch: "The Anti-Aircraft Defence of the United Kingdom from 28th July, 1939, to 15th April, 1945" London Gazette 18 December 1947 Brig N.W. Routledge, History of the Royal Regiment of Artillery: Anti-Aircraft Artillery 1914–55'', London: Royal Artillery Institution/Brassey's, 1994, . External sources The Royal Artillery 1939–45 British Military History Orders of Battle at Patriot Files British Army units from 1945 on Graham Watson, The Territorial Army 1947 Military units and formations established in 1938 Air defence brigades of the British Army Anti-Aircraft brigades of the British Army in World War II Military units and formations in County Durham Military units and formations disestablished in 1961