Wright Floyd is known for a wife by the name of Demaris Floyd nee Adams born about 1812 or 10 years later than Wright. It is problematic for the birth of the following attributed children:
1. Delilah Goodson Brantley b. 1818
2. John R. Floyd b. 1821
3. Wilson Floyd b. 1826
4. Sarah Jane Floyd
1830 Census Source Citation
Year: 1830; Census Place: Horry, South Carolina; Series: M19; Roll: 170; Page: 261; Family History Library Film: 0022504
"Right" Floyd has beside himself; one female - implied wife age range 20 - 30. and three male children - 2 between the ages of 5 - 10 and 1 under the age of 5.
In 1830, Wright lived next door to his brother-in-law Isaac Mincey (Anna Jane Floyd).
From 1840 census (citation below):
1 Male 30 - 40 ("Wright" Floyd)
1 Male 15-20 (Unknown son of Wright Floyd - Correct age to be son John R. Floyd)
1 Male 10-14 (Unknown son of Wright Floyd - Correct age to be son Wilson Floyd)
1 Male 5-10 (James Floyd)
1 Female 30-40 (wife of Wright Floyd - too old to be Demaris if she was born in 1812)
1 Female under 5. (Sarah Floyd)
"United States Census, 1840," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XHYL-4F4 : 19 August 2017), Right Floyd, Horry, South Carolina, United States; citing p. 325, NARA microfilm publication M704, (Washington D.C.: National Archives and Records Administration, n.d.), roll 512; FHL microfilm 22,509.
It was only in 1850 that we have a named wife Demaris and she appears 10 years younger than Wright. Can we deduce that 1st wife Unknown died between 1840 and 1850 perhaps when daughter Martha was born in 1841 or right after as childbirth was a common death?
Something to ponder. Demaris must have been well-thought of for Delilah named a daughter "Demaris or Demie" for the elder about 1850. I am searching to see if Demaris had any children of her own, but if the dates are correct, I don't think the children of Wright's were her biological children - but those of his first wife Unknown at this time. More digging is needed.
I will leave this up a week for comment, but I can't find any evidence for Demaris as mother of any but possibly Martha and more evidence of the Goodson family of Delilah's living with brother John and brother James in different censuses before she moved to Florida and married her second husband.