Guy Vesey Hawtrey was born on the 21st of June 1870 in Eton, Buckinghamshire, the son of John William and Gertrude Hawtrey. His father was an Assistant Master in the lower school at Eton.
Guy himself attended Eton, leaving in 1897. On the 18th of March 1899, he was commissioned as a Second Lieutenant in the 3rd Bn Royal Fusiliers. Promoted to Lieutenant and transferred to the 5th Bn, he saw active service in the Boer War.
He resigned his commission and moved into civilian life. He was commissioned in the 2/1st Lovat's Scots when the Great War broke out. Subsequently transferred to the Royal Gloucestershire Hussars, Hawtrey fought in Egypt and Palestine. In June 1918 he contracted Malaria which saw him hospitalised.
He was discharged and suddenly died on the 7th of April 1921 due to his illness contracted on active service.