Patrick enlisted on 18th February 1915. He was 26 years old; was a Labourer by trade; and was living at 40 Queen Street, Dublin at the time. On 26th October 1915 he embarked at Southampton, then disembarking the next day at Rouen, entered the war in France on 27th October 1915. From Base Details. he proceeded to report to the Assistant Directer of Medical Service, 1st Division, arriving on 29th October 1915, he was posted to serve with the 141st Field Ambulance. On 23rd February 1916 he was attached for medical purposed to the 1st Bn. Northamptonshire Regiment. On 29th April 1916 he joined the 1st Field Ambulance for temporary duty, then on 29th May 1916 was attached for temporary duty with the 1st Division Trench Maintenance Coy. He re-joined the 141st Field Ambulance on 28th June 1916, and was on their strength when he was slightly wounded on 18th July 1916, whilst serving with bearers attached to No 2 Field Ambulance. He was admitted into his unit after being transferred from the hospital of the 1st Field Ambulance. On 28th July 1916 he was discharged from the hospital of the 141st Field Ambulance back to duty. In January 1917, Patrick was admitted to No 45 Casualty Clearing Station, then evacuated on No 25 Ambulance Train to No 5 General Hospital in Rouen. On 8th January 1917 he was evacuated back to England. On 18th April 1917 he travelled with M.T.T. Reinforcements to Marseilles. He was on board the Hired Transport "Transylvania", when it was proceeding to Egypt with reinforcements, and was sunk by a torpedo by the German U-boat U-63 off Cape Vado, a few kilometres south of Savona. Patrick was official reported as missing, believed drowned. He was the husband of Mary Murphy.