If you google Augustine Bearse there is a lot of information out there including family trees.
Carol
Have you read information about Augustine Bearse on WikiTree? In particular read the sections on Disputed Origin, Disputed Spouse and Biography. *
See also
https://www.genealogy.com/forum/surnames/topics/bearse/320"Franklin BeArce invented …… serious genealogists should not perpetuate his 'research'. "
Augustine's wife, Mary, having been a Native American "princess" seems to have been a myth. Evidence for Augustine being a Romany is disputed.
An example on how evidence may be misinterpreted:
It says on one site that Augustine "was listed on a ship after Martha Wilde and her daughter, Mary …..". Another says "he was travelling with Martha Wilde and her daughter, Mary". The latter statement seems to imply that Augustine and Martha and her daughter might have been connected. The evidence shows only that they were on the same ship. They may have been listed consecutively because they boarded at same time. Some family historians make 2+2 = 5.
These events took place in early 17th century. Those trees and research give Augustine a birth year c.1618, going by estimated age of 20 when he emigrated.
Researching pre 1700 is very difficult. E.g. 2 of my lines remained in the same 2 English parishes from mid 1500s (start of parish registers) until 1800s. They occupied land so their names are on rent-rolls and leases; many made wills; some were qualified to vote, in an era when most men didn't; one line featured regularly on Recusant Rolls; there are a lot of documents in county and National Archives under their names. Despite all that evidence, I cannot get back with certainty beyond 1690. I'm not even 100% sure about the generation between 1690-1730.
*Edit. WikiTree has restrictions on who can add information about people born pre-1700 because of difficulties researching this time. The pre-1700 section on WikiTree has useful guidance on reliable and unreliable sources and the difference between source and evidence.