Waller Family in Ky/Carolina

My grandfather's name is Norman Waller.He lived in the Carolina area and had family in Cumberland, Ky. and possibly Lether County, Ky.I would like to know more about him and possibly his mother and father as well as any other family members. He passed away late seventies or early eighties.I know he had one son, my father named Patrick David, and another son by the name of Larry. I would appreciate any information.