Arthur and Ernest were the sons of William and Elizabeth Smith who lived at Maidenhead near Tenterfield NSW. Arthur enlisted at Inverell in January 1916 when he was twenty six years old and working as a stockman near Tenterfield. Ernest enlisted at Inverell on 17 February 1916. He was twenty one and working as a Stationhand for Thomas Edmond at Emu Park Station, Texas, Qld. Their brother Crief had already gone to the War. Arthur and Ernest joined other district men who formed the Second Contingent of the Kurrajongs and left Inverell together on 29 February 1916.
In May the brothers sailed from Australia on HMAT A74 Marathon with the 33rd Battalion, 1st Reinforcement and after arriving in England trained at Salisbury Plain.
Arthur was transferred to the 53rd Battalion in September 1916 and sent to France. He became seriously ill with pneumonia in December, was returned to England and admitted to Guildford Hospital. Eventually the decision was made to return him to Australia. He arrived home in May 1917 and discharged six months later with a pension of three pounds per fortnight. After several weeks in hospital in Sydney, Arthur returned to his family. A Welcome Home was organised for him at the Bonshaw Hall where he was presented with an inscribed gold medal.
Ernest was sent to France with his Battalion in November 1916 and wounded during the Battle of Messines in June 1917. After being invalided back to England he was admitted to hospital with a gunshot wound to his jaw. Ernest returned to Australia in March 1918 and discharged in June.
The names of Ernest and Arthur are inscribed on the Inverell Honor Roll and the Bonshaw Honor Roll.