My family is from the Philadelphia/Delaware/NJ area. My paternal grandmother was Gertrude Irma Rentz (d. approx 1960, aged 60s), whose parents were Sadie Casselberry and John Rentz. John's parents were Mary Heim and John Rentz.
I don't have any details, except about Gertrude's decendants. I was given this simplistic family tree by an elderly female relation thirty years ago, and have lost touch with my entire family since. I don't even remember who the relation was!