Complex sentence: Her father, Harry E. Ockelman, of Danish-Irish descent, Veronica's paternal grandfather was born in Denmark as were his parents, and her paternal grandmother was born in Ireland as were her parents.
Split into simpler sentences: Her father, Harry E. Ockelman, of Danish-Irish descent, Veronica's paternal grandfather was born in Denmark, as were his parents. Her paternal grandmother was born in Ireland, as were her parents.