trying to find family

Im trying to locate my family in hindley, my dad Robin Martin passed away a few years ago after living in Hindley, Wigan for about 15years. Since then my stepmother (Angela) has moved away with my brother(Grant) and one of my sisters(Rachael). one of my sisters(Sheryl) is still living on lancaster road, Hindley, with her grandparents, if anyone has any info or contact details it would be great if you could send them to me as Im desperate to get in contact with them my mobile is 07845371240