The Chesnut Family Tree (contact Donald Chesnut at drches01@uky.edu) includes Nellie and Steve Watkins.
The notes for Nellie lists an aka for her as "Nellie Bancroft Bauman". There is a disconnected entry in the Ancestry Family Tree database which shows a Steven W Pigg married to a Nellie Bancroft Bauman. This entry is bare with no dates or details. The aka is probably bad information.