The Wampanoags were often referred to as "white Indians" due to their light skin and are believed to have descended from Viking explorers. John Hyanno's mother is said to have been a princess of the Narragansett tribe and the daughter of Canonicus who was a sachem of some renown. Canonicus along with one Miantonomi were the two principals in deeding over what is now called Rhode Island to Roger Williams.
There is no proof of Bearse's gypsy ancestry. However, Jacobus' assertion that
http://www.murrah.com/gen/bearse.htm