The maiden name of Sarah, wife of Benjamin, is not known. She may have moved to Alabama with her oldest son, Thomas Madison Rasberry, since the 1820 census of Bibb County, Alabama, lists a Sarah Rasberry (obviously a widow). No other information about her has been found yet.
Although very little is known about Sarah, who married Benjamin Rasberry, the 1820 census records for Alabama list a Sally Rasberry. This may be Sarah, who may have settled in Alabama near her oldest son, Madison. I have not found any additional records.