Looking for Family to Harry Harper B 1932 Pennsylvania D 1984 Ba Okl

Looking for family to Harry Harper b-1932 Pennsylvania, d-1984 BA, Oklahoma. Married to Arlene (Flannery?)Harper, who is still alive, I am his grandson, my father is Micheal Harper, trying to find the parents of his to as far back as it will go, and any relatives to find out as much as I can