Alfred Tatlock was the younger brother of Albert and father of Valerie. Alfred and Albert lived in lodgings in Rosamund Street after their parents' death from TB in 1906. When Albert left to join the Lancashire Fusiliers in 1914, Alfred moved in with his aunt Mary Osbourne and her husband Thomas at 1 Coronation Street. His stay was brief as the family moved to the Osbourne family home in south Manchester the following year. Alfred signed up to fight in the war when he was old enough but when it ended in 1918 he hadn't seen much action. Alfred moved to Liverpool but returned to Weatherfield in 1921 and moved in with Albert and his wife Bessie, taking a job at Hardcastle's Mill.