Smith of PA

My fathers family is from Scranton PA. The problem is I can not find out anything after my grandfather. My father was Benjamin F Smith. His father was a Benjamin F Smith a bus driver. My great grand father was a Daniel Smith a trolley man in PA. We know the family is Irish and Indian but we don't know much more. My grandmother was Katherine McGeary. Looking fo any information. I think my grandfather had a brother Edward. Looking for help. Laurel Files