I think it is about time you spent some money on certificates, it will ease your search if you can sort out who you are actually looking for. If you want an educated guess then his father was Henry W Green who died Ashton in 1974 born 4/11/1892. There is a marriage in Cardiff 1920 of a Henry W C Green to a Mary J Phipps. No obvious connections with Ashton but it was just after WWI and Ashton had a barracks so who knows. The birth certificate is the next step.