Martha Jane Compton Etheredge was my great, great, great grandmother.
according to the census records, Jane Compton Etheredge, wife of John Franklin Etheredge, was born in Alabama but her parents were born in Florida. According to other information online, Charles Ferdinand Compton was also born in Florida. Susan Etheredge married Charles Compton so she is listed as Susan Compton. I don't know if this is the Susan Compton that you are referring to but her gravestone shows that she was born in 1837. the census shows martha jane using jane and born in 1838 but the gravestone of Martha Jane Etheredge which is in the Putnam Cemetery shows a date of 1839.