I can give you an outline for now and then can try to cite my sources later this weekend.Sources cite Francis Jackson as married once to a Sarah "Sally" Tyler, but I think there was another later marriage which would explain the much younger set of children as well as the children of Sarah "Sally" Tyler's sister Jane Tyler Lovell. (Jane married James Lovell and moved to NC and after their deaths, their children went back to Virginia to live with Uncle Francis and Aunt Sarah...)
Samuel Jackson, in area by 1688, andliving as late as 1695 in Stafford Co., Va. Wife unknown. His property is now located withinthe Quantico military base.
John Jackson, born 1680s? Va.? or England?, died before 1741, in what is now Prince William Co. Wife unknown.
The wife of one of these two men is believed possibly a Lovell since there was a Lovell Jackson, a contemporary and probably kinsman.
John Jackson had two known children: 1. Our Francis Jackson, born perhaps 1710-1715??, in what is now Prince William Co. and 2. . Rose Jackson, born before 1721, still alive in 1742, and married to Thomas Jordan.
Francis Jackson m Sarah "Sally" Tyler and had at least two, if not four known children and maybe more,and then married again, maybe to another Sally? who was the mother of the youngest set of children named in his will.All the children in his household need to be sorted out.
By his first wife Sarah "Sally" Tyler:
1. Charles Jackson, died before his father, but left a son named Billey Jackson who was raised by his grandfather Francis.Charles' wife not yet identified.
2. Our Mary Jackson, who was NOT named in her father's will because she was already married and 'provided for." ( This is why the store book account proving her marriage to Capt. George Carter was so important in terms of ddocumented proof.)
3. Probably Samuel Jackson, who was to raise brother or half-brother Francis.
3. Probably Jane Jackson, who m William Fielder. They were to raise younger siblings or half-siblings Susanna, Constant and Elizabeth. William Fielder to be executor.
Other children named in Francis Jackson's will dated 10 Dec. 1781, Pr. Wm. Co. Will Book G, 1778-1791, pp. 142-145:Francis Jackson (under 21), Ann Jackson (under 18), Susanna Jackson (under 18), Constant Jackson (under 18),Elizabeth Jackson (under 18).John Thorn was the witness to the will.(I believe he is the John Thorn, son of Sarah Muse.) Will proved 7 January 1782.
Francis Jackson was comfortably well off- store book accounts list lace fans and one record listed a violin.
Sarah Tyler's ancestry:
Strong circumstantial evidence and lack of other contenders show that Sarah and Jane Tylerwere very highly likely to be daughters of Charles Tyler and Susanna Monroe, and sisters of Charles Tyler Jr. and John Tyler.(Charles Jr. m. Ann Hereford and John m. Margaret Gray, a widow of Spence Monroe.
Richard Charles Tyler- (full name revealed when he witnessed a deed but usually referred as Charles Tyler)- married a Jane ____ and made a will in 1723 in Westmoreland Co.Was quite wealthy. Probably immigrants from perhaps Bristol in England since he corresponded with people there. Among his children was son Charles.
Charles Tyler died 1725-1729, in what is now Prince William Co. - owned 1,194 acres not far from the Quantico military base.He married Susanna Monroe, born c. 1695?, Westmoreland Co., as daughter of Col. Andrew Monroe and Eleanor or Ellenor Spence.After his death, Susanna was married briefly to William Linton and then married thirdly to Benjamin Grayson, an immigrant from Scotland. Had son William Grayson who became an influential political figure in Virginia politics. (So it is not a coincidence that one of the Carter daughters in western part of Virginia married a Grayson.)
Col. Andrew Monroe, b c 1661 and d. 1714, Westmoreland Co., was the son of Major Andrew Monroe, immigrant, and wife Elizabeth (traditionally said to be a dau of that influential John Alexander of Stafford).Major Andrew Monroe is often connected to the"Katewell" branch of Monroes in Scotland but this may belong to another Andrew Monroe, immigrant, further south in Virginia instead. Our Andrew's origins still uncertain but may be connected in some way with a place in Scotland called Fowlis or Foulis Castle (?) since a descendant called his plantation Fowlis,Major Andrew Monroe m. Elizabeth, said to be a dau of John Alexander.
Col. Andrew's wife, Eleanor Spence, was a dau of Lt. Patrick Spence and Dorcas ____ (not a Youell, perhaps widow of a Sturman? and said to be a dau of a David Norry??).Dorcas later married JohnJordan and mentioned a silver tankard and Spanish leather shoes in her will in 1708.