Several times on here, I have seen the name 'Diguina' used in conjuntion with the daughter of Ova. I have even seen Ova and her husband with the name Diguina used as a family name. It isn't one. In fact, Diguina isn't part of their names at all. In the historical texts, Margaret Wheldon was originally named 'Oguina'. she was then taken to England and baptized as "Martha Wheldon".
Her original name in Wampanoag was: Oguina.
Diguina was a flawed translation, which was then misapplied to her parents. It wasn't a family name.