There is some discussion of the ancestry of Rebecca Bowen, wife of Peter Jett (died 1784) in the following books:
"The Jett and Allied Families", Jeter Lee Jett, 1977.
"Jett Trails Revisted A Genealogical Study of the Jett Family ofVirginia", Lois M. Jett and Ernest C. Jett, 2000.
"The Monteith Family and the Potomac Indians", William L. Deyo, 2001.
"Porch Family The Forgotten Legacy of White Oak Stafford County,Virginia", William L. Deyo, 2001.
While Rebecca's paternal ancestry is fairly straight forward, there is some question about her maternal ancestry. I believe that I have now reviewed all of the extant records (deeds, court orders, and wills) for the Bowen, Clapham, Richardson, and Thatcher families prior to 1750. I have listed the essential facts on these families relative to Rebecca's ancestry below.
1. Rebecca Bowen was the granddaughter of John Bowen, whose will was proved in Old Rappahannock Co., VA in 1686 (Deeds & c, Vol. 6 (1677-1687), pp. 74a, 75; will dated April 1, 1686; proved May 5, 1686, and recorded May 17, 1686). John Bowen named five children in his will, Martha, Mathew, John, Stephen, and Alexander. All of the sons were stipulated to have been minors, i.e. born after 1665 and prior to 1686 (his wife was stated to be pregnant when the will was written).
2. Rebecca Bowen was the daughter of Stephen Bowen, whose will was proved in King George Co., VA in 1749/50 (Will Book, Vol. A-1 (1721-1752), pp. 227-228; will dated August 25, 1747; proved January 5, 1749 (1749/50)). Stephen Bowen named the following people in his will: sons, Mathen [sic] Bowen, William Bowen, and Stephen Bowen; daughters, Susana Bowen, Rebecka Jett, Elizabeth Hughs, Mary Bowen; son-in-law, John Jett (husband of Stephen's daughter, Margaret, apparently deceased) and his [their] five children, all minors.
3. The will of Mary Richardson was proved in King George Co., VA in 1727 (Will Book, Vol. A-1 (1721-1752), p. 61; will dated August 24, 1724; proved April 7, 1727). Mary Richardson named the following people in her will: grandson Stephen Bowen, son Clapham Richardson, daughter Mary Turnbull, and son [in-law] Stephen Bowen.
4. Mary Richardson was the daughter of Silvester Thatcher (died 1667) and the widow of William Clapham and Thomas Richardson. Mary married William Clapham before 1684. William Clapham died intestate 1693-1696. William Clapham and wife Mary are known to have had at least two daughters: Mary (living August 1724), who married James Woffendale and then a Mr. Hughes; and Elizabeth (died 1722), who married George Green and then Richard West. Mary Clapham nee Thatcher married Thomas Richardson before October 7, 1696. Thomas Richardson died testate in Richmond Co., VA prior to September 2, 1719 (Will Book, Vol. 4 (1717-1725), p. 132; will dated November 3, 1717; proved September 2, 1719). Mary and Thomas Richardson are known to have had at least one child, son Clapham Richardson, who died before May 4, 1750 in Richmond Co., VA (will dated March 13, 1749/50; proved May 4, 1750). There is no mention of any member of the Bowen family (legatee, witness, etc.) in either the will of Thomas Richardson or Clapham Richardson. Also, there are no known deeds in which Stephen Bowen and Clapham Richardson are both mentioned.
Since Stephen Bowen did not specifically state in his will that any of his children were minors (he did state that five of his grandchildren were minors), it is reasonable to assume that they were all at least 21 in August 1747 (born by 1726). Clearly, sons Mathen [sic] and William Bowen were of legal age because they were named as executors in the will. Stephen Bowen [Jr.] was alive by August 1724, since he was named in the will of Mary Richardson.Rebecka/Rebecca Bowen was married to Peter Jett in 1736/7, so she was clearly born prior to 1721. Since Mary Richardson did not name Stephen Bowen's wife (her daughter) in her will on August 24, 1724, it has been assumed that she had already died (this is a fair assumption, since the only other two known living children were mentioned). Assuming that Mary Richardson's daughter was the mother of all eight children mentioned in Stephen Bowen's will (a possibility, but not proven), she would have had to have been married to Stephen Bowen by 1716 (assuming no more than one child per year). Since young women of this class seldom married prior to the age of 16 during this period, it is reasonable to further assume that Stephen Bowen's wife was born by 1700. Stephen Bowen was born between 1665 and 1685, so his wife might have been born as early as 1685 (with her last child born by 1724). Since Mary Thatcher was married to William Clapham until at least December 1692, it is possible that the wife of Stephen Bowen was a child of Mary Thatcher's first marriage rather than her second marriage. The absence of any mention of the Bowen family in the wills of either Thomas Richardson or Clapham Richardson also adds some support to this hypothesis. Also, one of Stephen Bowen's sons was named William, while none of the surviving sons was named Thomas (although none were named for his father, John Bowen, either).