From information given by Ellie Clausen, Descendants of William Sr. Swanson.
In 1850 Census, she was living nearby Joseph and family. A widow with a 24 year old son b. TN. Possibly married to a Benjamin Christian. A James may have been his brother, who took in some Bogue children living next to the Christians as per 1870 census.
Ancestry.com
Ancestry.com