This is my working hypothesis - the way I see it as of this moment!! 

  H'mmm. Could this be the father of Sarah the wife of John Brown of Cuttawhiskey Marsh?

 Will of John Brittle 20 Dec 1778 proved June NH Co Ct 1780 
     [from Hofmann abst]
to my son Jesse Brittle 300 ac etc homeplace
to son Britain Brittle 230ac 
to son Benjamin Brittle and his wife use of 100 ac land to go to grandson Rowling Brittle or if he dies to gs Phillip Brittle
to daughter Milla Scarborough 1 negro
to son William Brittle  100 pounds VA money
to Sarah Brown    100 pounds VA money, bed, furniture, etc 
Extr: my sons Jesse and Britain
Wits: Randolph Madra, Zacharaiah Murrell, John Edmunds

Children of John Brittle died 1780
1. Jesse Brittle
2. Britain Brittle   died 1782
     if wife marries negroes to go to Micajah Brown
      married Sarah    died 1806 names sons
       a. Britton Brittle died 1815
       b. Micajah Brown
3. Benjamin Brittle
      married unknown
       a. Rowling Brittle
       b. Phillip Brittle
4. Milla
     married Scarborough
5. William Brittle
6. Sarah Brittle
     married [John] Brown
7. John Brittle  died 1775

from other wills of Northampton County, NC

1. John Brittle
     married Elizabeth Bass dau of John died 1777
     a. Jesse Brittle
     b. Winnifred Brittle
     c. John Brittle
     d. Margaret Brittle
     e. Drury Brittle

John Brittle died 1787  names his daughters
    married Elizabeth
      a. Mary
      b. Elizabeth
      c. Sarah
      d. Frances
      e. Catherine
      f. Unidin

James Brittle died 1791 NH co
   married Martha
   a. Lucy
   b. Nancy
   c. Exum
   d. John
   e. Jesse

Deeds of Northampton Co NC
#1 p 123 - Nathaniel Jones of Northampton County,  planter to John Brittle of Surry Co, VA 29 Nov 1743 30 pounds current money of VA. 300 ac on the south side of the Meherin river, joining Gregory's branch, Braswell's branch, Deberry, and Benjamin Williams, all buildings and fences etc. Wit: Samuel Taylor, William Toler, Samuel Taylor, Jr.  Reg. NH co May Ct 1744 Robert Forster C Ct.
p 346 - John Bittle and Elizabeth Bittle are wit: to a deed from John Smelly of NH to John Bell of Isle of Wight, VA 23 Apr 1748.
#2 p 274 - Granville to John Brittle of NH Co 22 June 1749 3 sh proc money and rent 330 ac joining Howell Edmunds, Thomas Boykins, Henry Crafford and other lands of sd Brittle. Issued by E Moseley   Wit: John Dawson, Osbern Jeffreys  Reg May Ct 1756