Wigan Genealogy

I am trying to research my grandads family his name was Norman Birchall and lived in the wigan area of Springfield, his mother died in 1982 and he had 2 sisters. he married Patricia mccusker and had 2 children micheal and judith. He died in 1995 and his wife died last august. If anyone knows someone who could be related to or could be one of his sisters I would be really interested in getting in touch.