I don't know if you've tried checking for Estate Records for the family, but they are available on FamilySearch for free viewing & download. The NC Estate Files are being indexed, and Franklin Co. has quite a few already online, among them, I see several DENTONs which may be of help to you.
The Collection can be found here:https://familysearch.org/search/collection/1911121
Choose the "Browse..." option near the bottom of page, then go to the County of choice. The files are alphabetized.