Robin, I just saw your posting and would like to respond.Benjamin Posey ALLISON and Margaret Rebecca BIDDIX are my direct-line ancestors.I am descended from their son, William Riley "Little Bill" who married Mary Ann GLANDOWN/GLENDOWN.
Benjamin Posey ALLISON was the son of Henry ALLISON and Mary ALLISON, and was born about 1835 in the portion of Burke County, which later became McDowell.He had a twin brother named John Henry, who married Rebecca GLANDOWN/GLENDOWN. Other children were Jane Missouri, who married Joel POWERS, James Young, who married Minnie Lee KELLY, Dicie Susannah, who married John Phillip RAFFIELD and Annie Lee who married (1) J. A. RADAR and (2)Walter KEENE.
Both Benjamin and John fought in the Civil War and are buried in unmarked graves at Old Ebenezer Cemetery in Old Fort.Margaret Rebecca BIDDIX is buried in Piney Grove Cemetery just outside Old Fort, along with her son John Henry and daughter Dicie, as well as some of their family members.
Hope this helps. I have photographs of some of the tombstones if you're interested.