Bertie enlisted on 16th August 1915. He was 26 years old; was a shoe hand by trade; and was living at 104 High Street, Highans Ferrers, Northants at the time. He was posted the next day to “T” Coy. On 6th September 1915, he embarked at Southampton with the 66th Field Ambulance, then disembarking the next day, he entered the war in France on 7th September 1915. On the 23rd October he was transferred to serve with the 13th Field Ambulance, in the field. On 25th September 1916 he received a gun shot wound to his right leg and was evacuated to No 48 Casualty Clearing Station, then to No 12 General Hospital in Rouen, via ambulance train, the next day. He was then evacuated to England on the Hospital Ship “Aberdonian” on the 28th and was sent to a military hospital in Bootle, Liverpool from 30th September to 23rd November 1916. He then had a short stay in hospital suffering with influenza (3/12/1916-12/12/1916). Bertie was posted for duty on the Hospital Ship “Carlisbrook Castle” on 27th December 1916 and served on the ship until 22nd January 1917, when he then returned to the UK. On 3rd April 1917 he was posted for duty on the Hospital Ship “Salta”. He died when the ship struck a mine and sank half a mile north of the Whistle Bouy, Havre, on 10th April 1917. He was the son of Mrs Kate Driver Slater of Munising, Alger Co., Michigan, U.S.A.