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

 This George Harrell was the son of another George Harrell ca 1776 and his wife Martha Blanchard.

 1850 census household includes  George Harrell ca 1810 and wife Elizabeth ca 1810, son George B Harrell ca 1839, son Michel D Harrell ca 1843, also in household 1850 Cyntha Harrell ca 1829 cannot read ~ all born NC 

Children of George Harrell and wife Elizabeth:
1. George B Harrell ca 1839 Bertie Co NC - bef 1900
George B Harrell Imprisoned at Point Lookout, MD. Co. L, 1st Reg NC Inf. & 11th Reg NC Troopers
     married 1869 Martha Ann Penelope Rayner 18 Oct 1839 - 1916
2. Michel D Harrell ca 1843 -

a Cyntha Harrell born ca 1829 is also a member of  the household.

George Harrell ca 1776 - ??? |  his parents 
& 1804 Martha Blanchard ca 1776 - |  her parents 
of Bertie County NC

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

George Harrell and Martha Blanchard were given a marriage bond on 28 May 1804; William White was the bondsman and Kenneth Clark a witness ~ Bertie County Marriage Bonds.

George Harrell and Martha Blanchard had:
1. George Harrell ca 1810 - 
      married Elizabeth Harrell ca 1810 -

Harrell ca 1750 -

Henry Harrell ca 1710 - 1777 |  his parents 
& Rachel Wimberley  ca 1715 - bef 1773 |  her parents 
of Bertie County NC

Children of Henry Harrell & Rachel Wimberley:
1. Edward Harrell
2. Pharaby Harrell
      married bef 27 Feb 1773 Peele
3. David Harrell
4. Joseph Harrell
5. Rubin Harrell
6. Benjamin Harrell ca 1737 - 1809
      married 23 Mar 1775 Jemima Powell
            George Powell, Bm ~ Bertie Marriage Bond
7. John Wimberly Harrell
      married 27 Jan 1792 Repsey Hobdy?
             John Rutland, Bm ~ Bertie Marriage Bond
8. Whitmell Harrell
9. Henry Harrell
      married 10 Mar 1788 Annis Davis
              John Wimberley, Bm ~ Bertie Marriage Bond
10. Rachel Harrell
11. Barbara Harrell
12. Elizabeth Harrell

Will of Henry [H] Harrell 27 Feb 1773  ~ Feb Ct 1777
"...weak in body..."
--son Rubin Harrell - plantation where he now lives, adj. Cashy Swamp
--son Benjamin Harrell - plantation where he now lives adj. Cashy Swamp, Henry Harrell, James Harrell.
--son Henry Harrell - plantation where I now live, but if he dies without heirs this land it shall revert to my son Whitmell Harrell.
--son John Wimberly Harrell -- land adj. Henry Harrell, James Harrell, Cashy Branch.
--son Whitmell Harrell -- land adj. Cashy Swamp.
--sons David Harrell and Joseph Harrell -- land on the east side of Cashy Branch containing 160 acres. 
--to my five sons Rubin, Benjamin, Henry, John Wimberly, Whitmell --all the land that is marked within the bounds of my patent, lying in the fork between branches of Cashy swamp, also cows and calves each.
--son Edward Harrell -- five shillings as his full share.
--daughter Pharaby Peele -- cow and calf.
--daughter Rachel Harrell -- cow and calf.
--daughter Barbara Harrell -- cow and calf
--daughter Elizabeth Harrell -- cow and calf
My Negro Sarah is to be sold and proceeds paid to my four said daughters.
EX: sons Rubin and Benjamin
WIT: James Purvis, John Higgs, Jacob Harrell
abstract by David B Gammon ~ "Bertie County, NC Wills"

Edward Harrell 1685 - 1754 |  his parents 
& Margaret Brumwell  |  her parents 
& Ann House ca 1688 - ???? |  her parents 
of Nansemond County VA &  Bertie County NC

Ann House was the daughter of Thomas House ca 1660 - 5 July 1733 and wife Mary.

Children of Edward Harrell and Margret Brumwell
1. Judith Harrell
2. Edward Harrell Jr

Children of Edward Harrell and Ann House:
1. Henry Harrell ca 1710 - bef Feb 1777
      married Rachel Wimberley ca 1715 -
2. Joshua Harrell 1712 - 1 Nov 1789
      married Ann ca 1712 -
3. Thomas Harrell 1714 - Aug 1791
       married Angelica ca 1717 -
        a. Jesse Harrell bef 1752 -
4. Mary Harrell 1714/16 -
      married 1734 Henry Andrews 1712/16 - 1762/65 Halifax Co NC
       a. Rebecca Andrews 1735 -
       b. Anne Andrews 1737 -
       c. Catherine Andrews 
       d. Henry Andrews 1743 Halifax Co NC -
       e. William Andrews 1745 Orange Co NC - 1824
             married Orange Co NC 1767 Mary Lloyd
5. Rebecca Harrell
       

C177 William Eason to Edward Harrell of Nansemond Co, VA
Dec 20 1729 25 pds for 350 ac on SES  Unerry? Swamp adj Owen Daniels, James Smith, William Eason, ---- Parker, Part of Patent granted William Eason 4 Aug 1723 and of  another patent granted Eason 1 May 1721 and part of a deed of sale of James Parker dated 12 July 1722. Wit: John Harrell, John Harrell, Grace Harrell  Feb Ct 1729. Thomas Crew DCC

12 Feb 1733/4  Bertie Ct. Jury to lay out a road from Elias Hodges ferry to Harralls hill & thence through Sheppards Swamp to Cashy Road. viz:
Rd. Allen, John Smith, James Homes, Geo. House, Jos. Harrall, Abm. Harrall, Edwd. Harrall, Fras. Harrall, Wm. Turner, John Moor, Rd. Hodges, Isaac Harrall, John Henard, Saml. Smith, John Glisson

Will of Edward [EH] Harrell 17 Aug 1752  May Ct 1754
"...being sick and weak in body..."
--son Henry Harrell - plantation where he now lives on Cassey Swamp, the patent line.
--son Joshewa Harrell - plantation that I bought of Saml. Page, and the remaining part of the land I have at Cassey that is not included in my bequest to my son Henry, also shoats and pigs already at Cassey and a horse already in his possession.
--son Thos. Harrell - land and plantation where I now live, reserving the use of the housing land and plantation for my wife Ann during her lifetime without molestation or disturbance.
-- grandson Jesse Harrell - lend the plantation and land, but he is not to sell or lease this land, but to behave himself and his grandmother until he is seventeen, when he may have this land for the term of ten years, and at my wife's death it shall revert to my son Thomas.
--daughter Mary Andrews - lend Negro Jene for her lifetime with reversion to my granddaughter Rebecca Andrews. Remaining estate I lend to my wife, and the use of my Negroes Toney, Peg and Sary for her lifetime. My Negro Yourk shall be sold and the proceeds divided among my four children.
EX: son Henry, son-in-law Henry Andrews
WIT: John Harrell, George House, Robert House
abstract by David B Gammon ~ "Bertie County, NC Wills"
Estate of Edward Harrell ~    Inv. 3 Aug 1754 by Henry Harrell, exr.