I don't have your Mary BERRYMAN, but I do have a little bit on the early BERRYMAN family, as they married into some of my lines. I hope that this bit might give you something more to look at in your search. This line came from:

Abstracts of Wills, Fairfax, V, commencing 1742, NGSQ, vol 10, mentioned as brothers in will of Benjamin Berryman.
Genealogies of Virginia Families III, Fl-Ha, Major Andrew Gilson and some of his Desc. p 208
"Early Virginians", edited by Miss Margaret Ann Buckner, Fredericksburg, publ 1963 p 186
St Paul's Parish Register 1715-1798, compiled by John Bailey Calvert Nicklin (Stafford and King George Co's)
Taliaferro Times Newsletter, Betty Ann Smiddy, 103197.3363@Compserve.Com, Northern KY Taliaferros
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Descendants of Benjamin Berryman, Maj



1 Benjamin BERRYMAN, Maj b: in Washington Parish, Westmoreland Co, VA d: 1729 in Either this date is wrong or he was married before Elizabeth
- +Elizabeth NEWTON m: Bef. May 22, 1724 in 22 children - 17 lived at adulthood d: 1763 Father: John Newton, Sr
- 2 Benjamin BERRYMAN, Jr d: Aft. December 4, 1748 in Fairfax, VA - will probate 21 Mar 1748 - b next to wife Sara & Dau Hannah
---- +Sara
---- 3 Frances BERRYMAN
-------- +George FOOTE m: December 3, 1731 in Washington Parish, Va
---- 3 William BERRYMAN
---- 3 [2] Hannah BERRYMAN d: Bef. 1748
-------- +[1] Gilson BERRYMAN, Gent m: 1741 in they were cousins d: April 4, 1749 in King George Co, VA Father: John Berryman Mother: Behethland Gilson
- 2 William BERRYMAN
- 2 James BERRYMAN
- 2 Maxmilliam BERRYMAN
- 2 John BERRYMAN b: ABT 1700 d: in died young - married young
---- +Behethland GILSON b: ABT 1706 d: Bef. March 30, 1736 Father: Thomas Gilson, Gent Mother: Elizabeth Newton
---- 3 [1] Gilson BERRYMAN, Gent d: April 4, 1749 in King George Co, VA
-------- +Rose
---- *2nd Wife of [1] Gilson BERRYMAN, Gent:
-------- +[2] Hannah BERRYMAN m: 1741 in they were cousins d: Bef. 1748 Father: Benjamin Berryman, Jr Mother: Sara
---- *3rd Wife of [1] Gilson BERRYMAN, Gent:
-------- +Sarah ALEXANDER, Widow b: in she called John and Behethland her children (?) m: August 20, 1753 d: in Andrew must have been Hannah's child
---- 3 Behethland BERRYMAN d: October 9, 1728 in King George co, VA - no issue
-------- +Thomas BOOTH m: October 10, 1727 in St Paul's Parish, King George, VA
- 2 Rose BERRYMAN b: ABT 1708
---- +Richard TALIAFERRO, Capt b: ABT 1703 in Powhatan VA m: June 10, 1726 in King George Co, VA d: September 27, 1748 Father: John The Ranger Taliaferro, Col Mother: Sarah Smith
---- 3 Martha Harvie TALIAFERRO
-------- +Thornton GILMER, Dr
---- 3 Sarah TALIAFERRO b: June 27, 1727 d: January 20, 1769
-------- +John LEWIS b: October 8, 1720 in New Kent Co, VA m: 1750 Father: Charles Lewis, Col Mother: Mary Howell
---- 3 Benjamin TALIAFERRO b: November 1, 1728 d: ABT 1751
---- 3 Zachariah TALIAFERRO b: August 29, 1730 in (could he be son of John T and Sarah Smith???? d: 1811 in SC -Sheriff Amherst Co, VA
-------- +Mary Braxton BOUTWELL m: 1749
---- 3 Richard TALIAFERRO b: 1731 d: 1731
---- 3 John TALIAFERRO, Dr b: April 7, 1733 in Orange Co, VA - lived in Surry Co d: April 7, 1821 in Wilkerson Co, GA - Will probated July 1821
-------- +Mary HARDIN m: 1755 in moved to NC d: in buried in old Taliaferro-Franklin gounds on estate near Pine Ridge, Surry, NC
---- 3 Charles TALIAFERRO, Col b: July 17, 1735
-------- +Isabella MCCULLOUGH
---- 3 Beheathland TALIAFERRO b: August 20, 1738
-------- +James STEVENS
---- 3 Peter TALIAFERRO b: February 12, 1739/40 d: July 1780 in Lincoln Co, KY, probably
-------- +Anne HACKLEYY m: 1761 Father: John HackleyY Mother: Judith Ball
---- 3 Elizabeth TALIAFERRO b: November 2, 1741
-------- +Zack HAWKINS
---- 3 Rose TALIAFERRO b: November 2, 1741
---- 3 Mary Harvie TALIAFERRO b: October 6, 1743
-------- +WORTHAM
---- *2nd Husband of Mary Harvie TALIAFERRO:
-------- +Peachy Ridgeway GILMER Father: George Gilmer, Dr
---- 3 Francis TALIAFERRO b: December 9, 1745
---- 3 Richard TALIAFERRO b: September 2, 1747
-------- +Jane BANKHEAD b: Aft. 1744 in St Margaret's Parish, Caroline Co, VA m: in It has been said that Richard is father of her children d: 1832 in Washington DC Father: James Bankhead, Dr Mother: Eleanor Monroe