Should have looked at my own information before posting followup. According to the 1870 census, Sarah was born in Tennessee. John Guinn not Gunn, died in 1862. Sarah died in 1874 and they are buried together in Georgia. Have seen the grave. So I don't think she was married to anyone else. I have the same marrige date and place. Maybe there were two Sarah Varnells. Still trying to get ancestry on mine.