Thanks for that.
Might we find any clues on Nancy (Barnes) Baker's origins in her probate file: North Carolina Estate Files, 1663-1979," database with images, FamilySearch: indexed 13 Mar 2018, Nancy Baker, 1882; citing Wilson County, North Carolina, United States, State Archives, Raleigh; FHL microfilm 2,224,588. (link is on her profile: I can hotlink it here if it didn't copy)