Born 9 March 1890 in Taunton, Somerset only son of Alexander Henry and Margaret Jessie Vaughan. Baptised on 11 April 1890 in Staplegrove, Somerset although they were living in the parish of St Mary Magdelene, Taunton at the time. His father was a Colonel in the 11th Devonshire Regiment. On the 1891 Census, one year old Guy and his parents were living at Waterslade House in Taunton Deane (now a Grade II listed building) with 3 servants, his father having retired from the regiment. They had moved to Cheltenham by 1901. On the 1911 Census he was with his regiment in Malta. He married Marie Louise Vaughan on Thursday 15 July 1915 at St Michael and all Angels, Woolmer Green. She was the only child of Mr and Mrs R Clifton Vaughan of The Cottage, Woolmer Green (a newspaper report in the Hertfordshire Mercury listed all the guests and presents received). Guy followed in his father's footsteps and enlisted in the army in the Devonshire Regiment. He graduated as a 2nd Lieutenant on 14 September 1910.