I think your Charnell Hightower may be Charnet, since there was a Charnet Perry later in Laurins County GA, who was descended from the Perry family of Halifax.
Also, I think Emily Harper may be the daughter of Ambrose Harper.In the 1790 census for NC, in the Halifax district of Franklin County NC (did this later split off to become Halifax Co.?) there was an Ambrose Harper whose household had one free white male over 16, apparently Ambrose himself, and 3 white females, and 6 slaves. In the same district, on the same census page, is a Joseph Perry who had one white male over 16, 3 white males under 16, 5 free females of all ages, and one slave.
In the same district in 1790 were Isaac Harper, James Perry, Henry Harper, Jett Harper, Vincent Harper.
The Charnet Perry in Ga was in the 1850 census for Laurens County, age 34.He had been born in GA. In the same county was a John perry age 63 born in NC. With him and wife Susan, age 60, born in Ga, was a student names Teral Perry age 17, who the census says was deaf.
I think this deaf Teral shows a family relation with Thornton Perry of Twiggs, who was the guardian (not father, apparently) of the Terrell Perry, later of Houston County, who married Elizabeth Wimberly Feb 21, 1838 in Houston Co, GA.She was apparently the Betsey Ann Perry mention in the May 19 1840 will of henry Wimberly of that county. Henry Wimberly's widow Nancy and TERRELL PERRY were executors of that 1840 will. (Incidentally, the county seat of Houston County is Perry, Ga, but it wasn't named after Terrell's family but after war hero Oliver Hazard Perry after his Lake Erie victory in 1812--he was no relation to GA Perry family, unless long long before in England.)
Of some relation to Thornton Perry of Twiggs Co Ga and the Perrys of Halifax, NC were James A Perry and James J Perry, both of Dooly County Ga in the 1850 Census. They were know respectively as "Hog Jim" and "Sheep Jim" (because of the animals they raised, I suppose--I hope!).They seem to have been first cousins.Sheep Jim was 30 in 1850, with wife Jane (Lewis) and l year old son James J, jr. He would seem to brother to Charnet Perry, 34, of Laurens Co Ga, and perhaps uncle to deaf Teral, age 17. One record says John Perry of Dublin (county seat of Laurens) Ga was son of Joseph Perry of Halifax and wife Emily Harper.Thus, he would have been brother to Thornton of Twiggs and Ambrose Harper Perry. Thornton of Twiggs, you will remember, married Mary Hightower, daughter of Joel Hightower. John Perry of Dublin/Laurens married Susan Hightower, so I suppose two brothers married two sisters.John of Dublin and Susan Hightower had a son Terrell Perry who married Athey Bellflower.
Is this Terrell Perry who married a Bellflower the same as Terrell Perry who married a Wimberly, or did Thornton of Twiggs have two nephews by different brothers, both named Terrell Perry? John Perry of Dublin also seems to be father of james J Perry of Dooly (sheep Jim). Perhaps the deaf "Teral" who was living, age 17, with John and Susan (Hightower) of Dublin/Laurens was the orphan of this Terrell Perry and Athie Bellflower, now living with grandparents?
There was a Joel E Perry living in Dublin in 1867.He is apparently the Joel Perry age 13 who was son of Edward and Elizabeth Perry of Laurins Co Ga in 1850, who was probably son of John Perry of Dublin and wife Susan Hightower. (Recall Thornton's wife Mary Hightower was daughter of Joel Hightower, and Susan was probably daughter of the same man.)
James A Perry of Dooly (hog jim) was 23 in 1850 and married to Eliza (Forehand), with son Andrew, 8 months old.Also in household was a Frances D Perry, age 14, who must have been James A's sister. I am descended from James A, by a later marriage.
James A was son of Joseph L Perry of Dooly, but born in NC, and wife Mary Ann Brown. I think Joseph L was the brother or maybe nephew of Thornton Perry of Twiggs.At any rate, James A Perry of Dooly named one of his last sons Thornton Perry, and this would have been Joseph L's grandson.