58 Denzil Road, Guildford, with detachments at London Road, Camberley, and at 259 Walton Road, Woking C Squadron at Tamworth Road, West Croydon, with a detachment at Clapham D Squadron at Coombe Villa, 105 Merton Road, Wimbledon, with a detachment at Clapham E (Cadet) Squadron Equipped and trained as Lancers, the Surrey Yeomanry was attached for field training to the TF's South Eastern Mounted Brigade. First World War When the regiment was mobilised on 4 August 1914, it was under the command of Lt-Col Sir John Humphery, one of the Sheriffs of the City of London, who had been commanding officer since 15 May 1912. The regiment immediately went with SE Mounted Bde to its war station in Kent. On the outbreak of war, TF units were invited to volunteer for Overseas Service. On 31 August, the formation of a reserve or 2nd Line unit was authorised for each 1st Line unit where 60 per cent or more of the men had volunteered for Overseas Service. The titles of these 2nd Line units would be the same as the original, but distinguished by a '2/' prefix, and they took in the many volunteers coming forward. In this way duplicate battalions, brigades and divisions were created, mirroring those TF formations being sent overseas. Later 3rd Line units were formed to provide reinforcement drafts to the 1st and 2nd lines. 1/1st Surrey Yeomanry In November–December 1/1st Surrey Yeomanry was split up to provide a divisional cavalry squadron to each of the three new infantry divisions being formed from battalions brought back from India and other Imperial posts. A Squadron On 21 November 1914 the squadron joined 27th Division at Magdalen Hill Camp, just outside Winchester. The division began embarking at Southampton on 19 December, and the squadron landed at Le Havre on 22 December, making it one of the first TF units to join the British Expeditionary Force (BEF) on the Western Front. 27th Division went into the line at St Eloi south of Ypres on the nights of 5/6 and 6/7 January 1915. The conditions were miserable, and mounted troops could play little part in Trench warfare. Under the command of Maj C.A. Calvert, A Squadron's usual work was road patrols and providing orderlies to headquarters, though they took part in anti-sniper stalking during the German attack on St Eloi on 14–15 March. In April 27th Division moved north as the