William enlisted on 22nd July 1915 at Oxford aged 52 (although his service record states he was 49 years 5 months old) and served in the RAMC as an orderly at the 3rd Southern General Hospital in Oxford. He was a coffee house keeper by trade and lived at 28 Hythe Bridge Street, Oxford. On 26th July 1918 he was admitted to the hospital with influenza. He was the son of Joseph and Mary Ann Rosier and the husband of Selina Rosier. They had three daughters, Dora, Ada and Olive [Information taken from his service record - researched and kindly provided by Chris Ludlam]