Thanks for the quick note! I understand your question - I've not uncovered any information that would seem to indicate he was born in America (and if so, whom his father or other family members were).
My confirmed data shows he married Rebecca Olmstead in 1643 in Hartford, Connecticut - she was about 19 at that time. They had 10 children in 21 years. He died on September 13, 1689, in Farmington, Connecticut, at the age of 69. His children are:
Rebeckah Newell 1643 1711
Mary Newell 1645 1676
John Newell 1647 1696
Thomas Newell 1650 1733
Hester Newell 1652 1739
Sarah Newell 1654 1700
Hannah Newell 1658 1757
Martha Newell 1658 ?
Samuel Newell 1660 1753
Joseph Newell 1664 - 1689
The book "Thomas Newell and His Descendants" (pub 1878) states "... it is said he from Hertfordshire, England ...". The American Genealogical-Biographical Index states England (but nothing more) - I looked at the index call-outs and if they were specific, they claimed Hertfordshire also.
Several other publications about early New England settlers state similar thoughts - although one does say HEREfordshire (vs Hertfordshire). But most are consistent in claiming Hertfordshire. I also have not found his name on Pilgrim ship records - but I haven't looked at them all yet - but am focusing on looking prior to 1640 (the date he shows up in Connecticut records).
I hoping that all of these published references are not the result of just repeating incorrect information - but that's what makes these searches a challenge, eh? Thanks again for your ideas!
Cheers,
Brian