After doing the posting in the thread below, I started trying to pin down Abraham Soverhill/Soveril/Soverel, and things got murkier than ever. There are far too many references to people of that name, and they don't add up.
First, there's the Abraham Soverel who was a founder of Orange, NJ and who is said to have married Jane Williams. There's also an Abraham Soverel who was born in Orange, NJ on 15 Jul 1716 and is generally shown as his son. Both of these Abraham's are said to have married Jane Williams and to have died in 1745. Since Jane's parents were born in the 1650's, she presumably was the wife of the elder Abraham, and it would be the younger Abraham who went off to Pennsylvania and died in the Susquehanna Valley in August 1745.
The younger Abraham was the father of Jane (born 17 Jan 1743, Orange, NJ) and of Matthias (born 20 Sep 1745, Orange, NJ.) Jane was presumably the Martha Jane Soverel who married Jabez Williams in Newark in 1779. (Or perhaps not. Age 36 would be awfully old to marry and start a family, and there was a Jane Soverel who died in January 1777.) Matthias was presumably the Matthias Soverhill who married Abigail Dodd in 1767 and died in Newark in 1768.
(The Williams family, by the way was from Wethersfield, CT, and Martha is also listed in places as being "of Connecticut.")
Second, there's Abraham Soveril of Simsbury who married Jemima Adams c. 1715. He also had a son named Abraham, born 11 Nov 1721 in Simsbury, who was living in "Newark" when he got custody of his younger siblings in 1746. I've taken this to mean Newark, NJ, and I've more tentatively assumed that he was the Abraham who was the father of Martha Jane and Matthias and that he did not die in 1745. (There was definitely an Abraham Soverhill in Essex County, NJ after 1745, because he is on record as witnessing the will of the Reverend Daniel Taylor on December 21, 1747.)
But in that case, who was the Abraham Soverhill who was born in Orange, NJ in 1716? And who was the Abraham Soverhill who died in the Susquehanna Valley of Pennsylvania in 1745?
Complicating this picture are some other Pennsylvania references. There's an Abraham Soverhill in an index of the first owners of land records (1687-1732). (Many of the Quakers mentioned there were apparently from Wales, and the rather muddled account in "New Jersey Genealogies" speaks of the Soverels as being Welsh.) And I just found a listing of "Provincial Officers and Soldiers, 1757-1764: PA Archives" at
http://ftp.rootsweb.com/pub/usgenweb/pa/1pa/military/french/... which shown an Abraham Soverhill as having enlisted on May 30, 1758.
If Abraham Soveril of Simsbury had any history prior to his marriage to Jemima Adams, if there were any record of Abraham's sons in New England after 1746, or if there were any Soveril's in New England at all apart from Abraham and his children, I'd be less concerned with establishing a connection with the New Jersey Soverhills. For that matter, if Soverhills weren't as rare as hen's teeth, I might even conclude that there had been three separate families (in Connecticut, New Jersey, and Pennsylvania), all with a fondness for the name "Abraham."
But as things are, it looks like a puzzle to be solved. I just don't know the answer.