I believe your gg-grandfather was Thomas Riley Sartain/Sartin born Ala in Dec 1839 and died in Shawnee, Oklahoma in 1906.Wife was Sarah Elizabeth Channy b. 1848 in Ms and died before 1900 in Izard Co, Ark.
Children I have are: John Sartin (1867); Persedda Rossete Sartin; George Littleton Sartin (8-1865) m Helen Dale; Newton Francis Sartin (7-1871)m Eliza J.; Isaac Newton Sartin (7-7-1871) m Jane Louise Bowman; Elizabeth Jane Sartin (7-29-1875); Reubin L Sartin (1878); Timothy Dixon Sartin (11-16-1880 - 6-6-1969) m Caladona Rossete Brewer; James Jackson Sartin (6-1883) m Nelle Poole; Ronda A Sartin (2-1886); Francis Modeny Sartin (8-25-1891/6-3-1965) m Daniel Lewis Poole [She died in Shawnee Okla, also]
Most of the information I have indicates all the children were born in Izard Co.This data comes from descendent of Timothy Dixon whom I believe died in Texas but am not absolutly sure.
Thomas Riley was son of Zarah Sartin (1812-tn) and his 1st wife Heneretta Martin.Zerah and his 3th wife moved to Hopkins Co Texas around 1860 (Sulphur Springs) where they died, he around 1865 and she around 1900.Zarah was brother to my GGGrandfather Thomas Albert (1818) and both lived in Franklin Co, Ala starting around 1830.Have not been able to pin down exactly who their parents were or where they came from.One brother used SARTIN while the other used SARTAIN (doubtfull if either could read/write)