William attested on 20th October 1913, he was 17 years old; a packer of medicine by trade, and serving with the 3rd Hants Regiment, Special Reserve at the time. He joined on the 22nd at Aldershot. William entered the war in France on 12th August 1914, whilst attached to the 2nd Bn. Grenedier Guards. On 10th July 1915 he was transferred to serve with the 4th Field Ambulance in the field, and then on 18th December 1915 he was posted to serve with the 1/3rd North Midland Field Ambulance (T.F.) in the field. William was wounded in action on 11th March 1917 and admitted into his own unit, being discharged two days later. On 9th March 1918, he was admitted into his unit again suffering with German Measles and was transferred to No 12 Stationary Hospital the same day. He was discharged on 18th March but admitted into No 58 Casualty Clearing Station on 26th March, with the same complaint. This time he was transferred to No 7 General Hospital, at St Omer and then to the Base Depot at St Omer on 4th April 1918. On 10th April 1918, William was posted to serve with No 6 General Hospital in Rouen. He was promoted to acting Lance Corporal with pay on 22nd October but reverted back to the rank of Private on transfer to England, when he proceeded to England on 23rd May 1919 for demobilization. He was discharged on 19th April 1920 but he reapplied and rejoined the colours.