Sidney was born in Sedgley in 1892 (his birth registration has him as “Robert Sidney”). By 1911, he was living with his widowed mother Eva Elizabeth and sister Selina at 67 Wesley Street, Bilston. Sidney was a sheet mill ironworker.
Sidney enlisted with the 10th Battalion of the Royal Welsh Fusiliers (number 15249), first serving from 27 September 1915. Unfortunately, he was wounded. Before he died of his wounds on 20 December 1915, as the sergeant was carrying him along the trench, he apparently told him, “If any parcels come from home, share them among the boys.” This was noted in an article in the Express & Star on 19 February 1916. He is remembered at the Ypres (Menin Gate) Memorial, as well as on the Bradley Memorial and the Bradley Methodist Church memorial in Bilston.